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                        Gear spindle and oil seal used therein
                    
                                            
                                - 
                                    Patent number 10,792,715
                                
 
                                - 
                                    Issue date Oct 6, 2020
                                
 
                        
                                            
                                - 
                                        
                                    PRIMETALS TECHNOLOGIES JAPAN, LTD.
                                 
                                - 
                                        
                                    Kenji  Yamamoto
                                 
                        
                                            
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        Gear spindle and oil seal used therein
                    
                                            
                                - 
                                    Patent number 10,016,798
                                
 
                                - 
                                    Issue date Jul 10, 2018
                                
 
                        
                                            
                                - 
                                        
                                    PRIMETALS TECHNOLOGIES JAPAN, LTD.
                                 
                                - 
                                        
                                    Kenji  Yamamoto
                                 
                        
                                            
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        Torque support
                    
                                            
                                - 
                                    Patent number 7,383,712
                                
 
                                - 
                                    Issue date Jun 10, 2008
                                
 
                        
                                            
                                - 
                                        
                                    SMS Demag AG
                                 
                                - 
                                        
                                    Gerhard  Artel
                                 
                        
                                            
                                - 
                                        
                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        Splined articulated coupling
                    
                                            
                                - 
                                    Patent number 4,176,540
                                
 
                                - 
                                    Issue date Dec 4, 1979
                                
 
                        
                                            
                                - 
                                        
                                    Davy-Loewy Limited
                                 
                                - 
                                        
                                    Bernard H. Barber
                                 
                        
                                            
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        Lubricating device for roll spindles
                    
                                            
                                - 
                                    Patent number 3,945,466
                                
 
                                - 
                                    Issue date Mar 23, 1976
                                
 
                        
                                            
                                - 
                                        
                                    G. Schwartz & Co.
                                 
                                - 
                                        
                                    Bernhard  Zodrow
                                 
                        
                                            
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3815709
                    
                                            
                                - 
                                    Patent number 3,815,709
                                
 
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                                    Issue date Jun 11, 1974
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3456760
                    
                                            
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                                    Patent number 3,456,760
                                
 
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                                    Issue date Jul 22, 1969
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3368369
                    
                                            
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                                    Patent number 3,368,369
                                
 
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                                    Issue date Feb 13, 1968
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3343376
                    
                                            
                                - 
                                    Patent number 3,343,376
                                
 
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                                    Issue date Sep 26, 1967
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3210991
                    
                                            
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                                    Patent number 3,210,991
                                
 
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                                    Issue date Oct 12, 1965
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3109513
                    
                                            
                                - 
                                    Patent number 3,109,513
                                
 
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                                    Issue date Nov 5, 1963
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        3095713
                    
                                            
                                - 
                                    Patent number 3,095,713
                                
 
                                - 
                                    Issue date Jul 2, 1963
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        2925885
                    
                                            
                                - 
                                    Patent number 2,925,885
                                
 
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                                    Issue date Feb 23, 1960
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        2788861
                    
                                            
                                - 
                                    Patent number 2,788,861
                                
 
                                - 
                                    Issue date Apr 16, 1957
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        2211386
                    
                                            
                                - 
                                    Patent number 2,211,386
                                
 
                                - 
                                    Issue date Aug 13, 1940
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
                                 
                        
                 
             
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                        2150248
                    
                                            
                                - 
                                    Patent number 2,150,248
                                
 
                                - 
                                    Issue date Mar 14, 1939
                                
 
                        
                                                                
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                                    B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...