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                        Electric lamp
                    
                                            
                                - 
                                    Patent number 9,386,670
                                
 
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                                    Issue date Jul 5, 2016
                                
 
                        
                                            
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                                    Osram GmbH
                                 
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                                    Andreas  Nittke
                                 
                        
                                            
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                                    F21 - LIGHTING
                                 
                        
                 
             
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                        Lamp with safety switch
                    
                                            
                                - 
                                    Patent number 6,570,327
                                
 
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                                    Issue date May 27, 2003
                                
 
                        
                                            
                                - 
                                        
                                    Koninklijke Philips Electronics N.V.
                                 
                                - 
                                        
                                    Gervais  Pinot
                                 
                        
                                            
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        Electric-light bulb
                    
                                            
                                - 
                                    Patent number 6,316,878
                                
 
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                                    Issue date Nov 13, 2001
                                
 
                        
                                            
                                - 
                                        
                                    Nagafumi  Tsukada
                                 
                        
                                            
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3916249
                    
                                            
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                                    Patent number 3,916,249
                                
 
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                                    Issue date Oct 28, 1975
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3886400
                    
                                            
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                                    Patent number 3,886,400
                                
 
                                - 
                                    Issue date May 27, 1975
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3868540
                    
                                            
                                - 
                                    Patent number 3,868,540
                                
 
                                - 
                                    Issue date Feb 25, 1975
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3638068
                    
                                            
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                                    Patent number 3,638,068
                                
 
                                - 
                                    Issue date Jan 25, 1972
                                
 
                        
                                                                
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                                    B60 - VEHICLES IN GENERAL
                                 
                        
                 
             
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                        3524100
                    
                                            
                                - 
                                    Patent number 3,524,100
                                
 
                                - 
                                    Issue date Aug 11, 1970
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3260888
                    
                                            
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                                    Patent number 3,260,888
                                
 
                                - 
                                    Issue date Jul 12, 1966
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        3227920
                    
                                            
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                                    Patent number 3,227,920
                                
 
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                                    Issue date Jan 4, 1966
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        2805356
                    
                                            
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                                    Patent number 2,805,356
                                
 
                                - 
                                    Issue date Sep 3, 1957
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        2518909
                    
                                            
                                - 
                                    Patent number 2,518,909
                                
 
                                - 
                                    Issue date Aug 15, 1950
                                
 
                        
                                                                
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                                    G08 - SIGNALLING
                                 
                        
                 
             
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                        2242383
                    
                                            
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                                    Patent number 2,242,383
                                
 
                                - 
                                    Issue date May 20, 1941
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        2075436
                    
                                            
                                - 
                                    Patent number 2,075,436
                                
 
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                                    Issue date Mar 30, 1937
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS
                                 
                        
                 
             
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                        1982368
                    
                                            
                                - 
                                    Patent number 1,982,368
                                
 
                                - 
                                    Issue date Nov 27, 1934
                                
 
                        
                                                                
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                                    H01 - BASIC ELECTRIC ELEMENTS