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                        Wien bridge oscillator
                    
                                            
                                - 
                                    Patent number 9,935,580
                                
 
                                - 
                                    Issue date Apr 3, 2018
                                
 
                        
                                            
                                - 
                                        
                                    Jabil Inc.
                                 
                                - 
                                        
                                    Ronald  Beebe
                                 
                        
                                            
                                - 
                                        
                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        Synchronous buck inverter
                    
                                            
                                - 
                                    Patent number 9,660,580
                                
 
                                - 
                                    Issue date May 23, 2017
                                
 
                        
                                            
                                - 
                                        
                                    Jabil Circuit, Inc.
                                 
                                - 
                                        
                                    Ronald  Beebe
                                 
                        
                                            
                                - 
                                        
                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        Wein bridge oscillator
                    
                                            
                                - 
                                    Patent number 9,647,608
                                
 
                                - 
                                    Issue date May 9, 2017
                                
 
                        
                                            
                                - 
                                        
                                    Jabil Circuit, Inc.
                                 
                                - 
                                        
                                    Ronald  Beebe
                                 
                        
                                            
                                - 
                                        
                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        3477040
                    
                                            
                                - 
                                    Patent number 3,477,040
                                
 
                                - 
                                    Issue date Nov 4, 1969
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        3293570
                    
                                            
                                - 
                                    Patent number 3,293,570
                                
 
                                - 
                                    Issue date Dec 20, 1966
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        3212026
                    
                                            
                                - 
                                    Patent number 3,212,026
                                
 
                                - 
                                    Issue date Oct 12, 1965
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        3146407
                    
                                            
                                - 
                                    Patent number 3,146,407
                                
 
                                - 
                                    Issue date Aug 25, 1964
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2971165
                    
                                            
                                - 
                                    Patent number 2,971,165
                                
 
                                - 
                                    Issue date Feb 7, 1961
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2941160
                    
                                            
                                - 
                                    Patent number 2,941,160
                                
 
                                - 
                                    Issue date Jun 14, 1960
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2930992
                    
                                            
                                - 
                                    Patent number 2,930,992
                                
 
                                - 
                                    Issue date Mar 29, 1960
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2917718
                    
                                            
                                - 
                                    Patent number 2,917,718
                                
 
                                - 
                                    Issue date Dec 15, 1959
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2907955
                    
                                            
                                - 
                                    Patent number 2,907,955
                                
 
                                - 
                                    Issue date Oct 6, 1959
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2898553
                    
                                            
                                - 
                                    Patent number 2,898,553
                                
 
                                - 
                                    Issue date Aug 4, 1959
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2874290
                    
                                            
                                - 
                                    Patent number 2,874,290
                                
 
                                - 
                                    Issue date Feb 17, 1959
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2858437
                    
                                            
                                - 
                                    Patent number 2,858,437
                                
 
                                - 
                                    Issue date Oct 28, 1958
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2852675
                    
                                            
                                - 
                                    Patent number 2,852,675
                                
 
                                - 
                                    Issue date Sep 16, 1958
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2838674
                    
                                            
                                - 
                                    Patent number 2,838,674
                                
 
                                - 
                                    Issue date Jun 10, 1958
                                
 
                        
                                                                
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                                    H04 - ELECTRIC COMMUNICATION TECHNIQUE
                                 
                        
                 
             
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                        2834954
                    
                                            
                                - 
                                    Patent number 2,834,954
                                
 
                                - 
                                    Issue date May 13, 1958
                                
 
                        
                                                                
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                                    H04 - ELECTRIC COMMUNICATION TECHNIQUE
                                 
                        
                 
             
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                        2827569
                    
                                            
                                - 
                                    Patent number 2,827,569
                                
 
                                - 
                                    Issue date Mar 18, 1958
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2826691
                    
                                            
                                - 
                                    Patent number 2,826,691
                                
 
                                - 
                                    Issue date Mar 11, 1958
                                
 
                        
                                                                
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                                    H04 - ELECTRIC COMMUNICATION TECHNIQUE
                                 
                        
                 
             
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                        2824963
                    
                                            
                                - 
                                    Patent number 2,824,963
                                
 
                                - 
                                    Issue date Feb 25, 1958
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2784313
                    
                                            
                                - 
                                    Patent number 2,784,313
                                
 
                                - 
                                    Issue date Mar 5, 1957
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2783373
                    
                                            
                                - 
                                    Patent number 2,783,373
                                
 
                                - 
                                    Issue date Feb 26, 1957
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2777952
                    
                                            
                                - 
                                    Patent number 2,777,952
                                
 
                                - 
                                    Issue date Jan 15, 1957
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2769088
                    
                                            
                                - 
                                    Patent number 2,769,088
                                
 
                                - 
                                    Issue date Oct 30, 1956
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2761970
                    
                                            
                                - 
                                    Patent number 2,761,970
                                
 
                                - 
                                    Issue date Sep 4, 1956
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2754417
                    
                                            
                                - 
                                    Patent number 2,754,417
                                
 
                                - 
                                    Issue date Jul 10, 1956
                                
 
                        
                                                                
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                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
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                        2749441
                    
                                            
                                - 
                                    Patent number 2,749,441
                                
 
                                - 
                                    Issue date Jun 5, 1956
                                
 
                        
                                                                
                                - 
                                        
                                    H03 - BASIC ELECTRONIC CIRCUITRY
                                 
                        
                 
             
            - 
                
                
                    
                        2745008
                    
                                            
                                - 
                                    Patent number 2,745,008
                                
 
                                - 
                                    Issue date May 8, 1956
                                
 
                        
                                                                
                                - 
                                        
                                    H04 - ELECTRIC COMMUNICATION TECHNIQUE
                                 
                        
                 
             
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                        2735937
                    
                                            
                                - 
                                    Patent number 2,735,937
                                
 
                                - 
                                    Issue date Feb 21, 1956
                                
 
                        
                                                                
                                - 
                                        
                                    H03 - BASIC ELECTRONIC CIRCUITRY