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                        Piston for a linear spool valve
                    
                                            
                                - 
                                    Patent number 7,703,475
                                
 
                                - 
                                    Issue date Apr 27, 2010
                                
 
                        
                                            
                                - 
                                        
                                    I.D.E. Technologies Ltd.
                                 
                                - 
                                        
                                    Henrikh  Rojanskiy
                                 
                        
                                            
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        Back-flow prevention valve
                    
                                            
                                - 
                                    Patent number 4,366,834
                                
 
                                - 
                                    Issue date Jan 4, 1983
                                
 
                        
                                            
                                - 
                                        
                                    Sargent-Welch Scientific Company
                                 
                                - 
                                        
                                    David E. Hanson
                                 
                        
                                            
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        Piloted freeze throttling valve
                    
                                            
                                - 
                                    Patent number 3,962,884
                                
 
                                - 
                                    Issue date Jun 15, 1976
                                
 
                        
                                            
                                - 
                                        
                                    General Motors Corporation
                                 
                                - 
                                        
                                    Richard E. Widdowson
                                 
                        
                                            
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                                    F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
                                 
                        
                 
             
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                        Suction throttling valve
                    
                                            
                                - 
                                    Patent number 3,942,333
                                
 
                                - 
                                    Issue date Mar 9, 1976
                                
 
                        
                                            
                                - 
                                        
                                    Murray Corporation
                                 
                                - 
                                        
                                    Arthur S. Kish
                                 
                        
                                            
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                                    B60 - VEHICLES IN GENERAL
                                 
                        
                 
             
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                        3810488
                    
                                            
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                                    Patent number 3,810,488
                                
 
                                - 
                                    Issue date May 14, 1974
                                
 
                        
                                                                
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                                    F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
                                 
                        
                 
             
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                        3771555
                    
                                            
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                                    Patent number 3,771,555
                                
 
                                - 
                                    Issue date Nov 13, 1973
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        3747633
                    
                                            
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                                    Patent number 3,747,633
                                
 
                                - 
                                    Issue date Jul 24, 1973
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        3665951
                    
                                            
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                                    Patent number 3,665,951
                                
 
                                - 
                                    Issue date May 30, 1972
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        3614966
                    
                                            
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                                    Patent number 3,614,966
                                
 
                                - 
                                    Issue date Oct 26, 1971
                                
 
                        
                                                                
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                                    F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
                                 
                        
                 
             
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                        3554220
                    
                                            
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                                    Patent number 3,554,220
                                
 
                                - 
                                    Issue date Jan 12, 1971
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        3040771
                    
                                            
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                                    Patent number 3,040,771
                                
 
                                - 
                                    Issue date Jun 26, 1962
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        3023997
                    
                                            
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                                    Patent number 3,023,997
                                
 
                                - 
                                    Issue date Mar 6, 1962
                                
 
                        
                                                                
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                                    F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
                                 
                        
                 
             
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                        2974679
                    
                                            
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                                    Patent number 2,974,679
                                
 
                                - 
                                    Issue date Mar 14, 1961
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        2923316
                    
                                            
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                                    Patent number 2,923,316
                                
 
                                - 
                                    Issue date Feb 2, 1960
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        2918080
                    
                                            
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                                    Patent number 2,918,080
                                
 
                                - 
                                    Issue date Dec 22, 1959
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        2817362
                    
                                            
                                - 
                                    Patent number 2,817,362
                                
 
                                - 
                                    Issue date Dec 24, 1957
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2676612
                    
                                            
                                - 
                                    Patent number 2,676,612
                                
 
                                - 
                                    Issue date Apr 27, 1954
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2635636
                    
                                            
                                - 
                                    Patent number 2,635,636
                                
 
                                - 
                                    Issue date Apr 21, 1953
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2573231
                    
                                            
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                                    Patent number 2,573,231
                                
 
                                - 
                                    Issue date Oct 30, 1951
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        2396840
                    
                                            
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                                    Patent number 2,396,840
                                
 
                                - 
                                    Issue date Mar 19, 1946
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        2277162
                    
                                            
                                - 
                                    Patent number 2,277,162
                                
 
                                - 
                                    Issue date Mar 24, 1942
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2155170
                    
                                            
                                - 
                                    Patent number 2,155,170
                                
 
                                - 
                                    Issue date Apr 18, 1939
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2086692
                    
                                            
                                - 
                                    Patent number 2,086,692
                                
 
                                - 
                                    Issue date Jul 13, 1937
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        2044452
                    
                                            
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                                    Patent number 2,044,452
                                
 
                                - 
                                    Issue date Jun 16, 1936
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING
                                 
                        
                 
             
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                        1804060
                    
                                            
                                - 
                                    Patent number 1,804,060
                                
 
                                - 
                                    Issue date May 5, 1931
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        1701865
                    
                                            
                                - 
                                    Patent number 1,701,865
                                
 
                                - 
                                    Issue date Feb 12, 1929
                                
 
                        
                                                                
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                                    G05 - CONTROLLING REGULATING