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                        Selection apparatus
                    
                                            
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                                    Patent number 10,684,606
                                
 
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                                    Issue date Jun 16, 2020
                                
 
                        
                                            
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                                    Mitsubishi Electric Corporation
                                 
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                                    Masakazu  Sagasaki
                                 
                        
                                            
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                        Method for machining shaft
                    
                                            
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                                    Patent number 4,911,042
                                
 
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                                    Issue date Mar 27, 1990
                                
 
                        
                                            
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                                    Ishikawajima-Harima Jukogyo Kabushiki Kaisha
                                 
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                                    Makoto  Shiozawa
                                 
                        
                                            
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                        Control device for a machine tool
                    
                                            
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                                    Patent number 3,983,376
                                
 
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                                    Issue date Sep 28, 1976
                                
 
                        
                                            
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                                    Finike Italiana Marposs-Soc. In Accomandita Semplice di Mario Possati & C.
                                 
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                                    Mario  Pozzetti
                                 
                        
                                            
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                        3863528
                    
                                            
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                                    Patent number 3,863,528
                                
 
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                                    Issue date Feb 4, 1975
                                
 
                        
                                                                
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                        3812747
                    
                                            
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                                    Patent number 3,812,747
                                
 
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                                    Issue date May 28, 1974
                                
 
                        
                                                                
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                        3809874
                    
                                            
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                                    Patent number 3,809,874
                                
 
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                                    Issue date May 7, 1974
                                
 
                        
                                                                
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                        3707101
                    
                                            
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                                    Patent number 3,707,101
                                
 
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                                    Issue date Dec 26, 1972
                                
 
                        
                                                                
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                        3633604
                    
                                            
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                                    Patent number 3,633,604
                                
 
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                                    Issue date Jan 11, 1972
                                
 
                        
                                                                
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                        3555658
                    
                                            
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                                    Patent number 3,555,658
                                
 
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                                    Issue date Jan 19, 1971
                                
 
                        
                                                                
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                        3489064
                    
                                            
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                                    Patent number 3,489,064
                                
 
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                                    Issue date Jan 13, 1970
                                
 
                        
                                                                
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                        3457810
                    
                                            
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                                    Patent number 3,457,810
                                
 
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                                    Issue date Jul 29, 1969
                                
 
                        
                                                                
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                        3293960
                    
                                            
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                                    Patent number 3,293,960
                                
 
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                                    Issue date Dec 27, 1966
                                
 
                        
                                                                
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
                                 
                        
                 
             
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                        3293961
                    
                                            
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                                    Patent number 3,293,961
                                
 
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                                    Issue date Dec 27, 1966
                                
 
                        
                                                                
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                        3057186
                    
                                            
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                                    Patent number 3,057,186
                                
 
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                                    Issue date Oct 9, 1962
                                
 
                        
                                                                
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
                                 
                        
                 
             
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                        2937478
                    
                                            
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                                    Patent number 2,937,478
                                
 
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                                    Issue date May 24, 1960
                                
 
                        
                                                                
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                                    B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR