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                        Worm gear machine
                    
                                            
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                                    Patent number 12,145,208
                                
 
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                                    Issue date Nov 19, 2024
                                
 
                        
                                            
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                                    Chongqing University
                                 
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                                    Shilong  Wang
                                 
                        
                                            
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                        Tooth gap relieved enveloping worm
                    
                                            
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                                    Patent number 10,955,040
                                
 
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                                    Issue date Mar 23, 2021
                                
 
                        
                                            
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                                    KINEMATICS, LLC
                                 
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                                    Kenneth D. Miller
                                 
                        
                                            
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                        Hobbing machine
                    
                                            
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                                    Patent number 4,385,855
                                
 
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                                    Issue date May 31, 1983
                                
 
                        
                                            
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                                    Veb Werkzeugmaschinenkombinat "7. Oktober" Berlin
                                 
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                                    Heinz  Papistok
                                 
                        
                                            
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
                                 
                        
                 
             
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                        Spur gear hobbing machine
                    
                                            
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                                    Patent number 4,284,376
                                
 
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                                    Issue date Aug 18, 1981
                                
 
                        
                                            
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                                    Veb Werkzeugmaschinenkombinat "7. Oktober" Berlin
                                 
                                - 
                                        
                                    Heinz  Papistok
                                 
                        
                                            
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
                                 
                        
                 
             
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                        3826173
                    
                                            
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                                    Patent number 3,826,173
                                
 
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                                    Issue date Jul 30, 1974
                                
 
                        
                                                                
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                        3785244
                    
                                            
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                                    Patent number 3,785,244
                                
 
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                                    Issue date Jan 15, 1974
                                
 
                        
                                                                
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                        3703756
                    
                                            
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                                    Patent number 3,703,756
                                
 
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                                    Issue date Nov 28, 1972
                                
 
                        
                                                                
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                        3077146
                    
                                            
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                                    Patent number 3,077,146
                                
 
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                                    Issue date Feb 12, 1963
                                
 
                        
                                                                
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                        3045557
                    
                                            
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                                    Patent number 3,045,557
                                
 
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                                    Issue date Jul 24, 1962
                                
 
                        
                                                                
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                        2981989
                    
                                            
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                                    Patent number 2,981,989
                                
 
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                                    Issue date May 2, 1961
                                
 
                        
                                                                
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                        2967461
                    
                                            
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                                    Patent number 2,967,461
                                
 
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                                    Issue date Jan 10, 1961
                                
 
                        
                                                                
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                        2935886
                    
                                            
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                                    Patent number 2,935,886
                                
 
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                                    Issue date May 10, 1960
                                
 
                        
                                                                
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                        2935887
                    
                                            
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                                    Patent number 2,935,887
                                
 
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                                    Issue date May 10, 1960
                                
 
                        
                                                                
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                        2837010
                    
                                            
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                                    Patent number 2,837,010
                                
 
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                                    Issue date Jun 3, 1958
                                
 
                        
                                                                
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                        2821865
                    
                                            
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                                    Patent number 2,821,865
                                
 
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                                    Issue date Feb 4, 1958
                                
 
                        
                                                                
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                        2776578
                    
                                            
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                                    Patent number 2,776,578
                                
 
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                                    Issue date Jan 8, 1957
                                
 
                        
                                                                
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                        2776603
                    
                                            
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                                    Patent number 2,776,603
                                
 
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                                    Issue date Jan 8, 1957
                                
 
                        
                                                                
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                        2641088
                    
                                            
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                                    Patent number 2,641,088
                                
 
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                                    Issue date Jun 9, 1953
                                
 
                        
                                                                
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                        2622484
                    
                                            
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                                    Patent number 2,622,484
                                
 
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                                    Issue date Dec 23, 1952
                                
 
                        
                                                                
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                        2547832
                    
                                            
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                                    Patent number 2,547,832
                                
 
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                                    Issue date Apr 3, 1951
                                
 
                        
                                                                
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR