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                        E-clip installation machine
                    
                                            
                                - 
                                    Patent number 12,297,604
                                
 
                                - 
                                    Issue date May 13, 2025
                                
 
                        
                                            
                                - 
                                        
                                    Hoyt E. Dodd
                                 
                        
                                            
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                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Rail retaining device
                    
                                            
                                - 
                                    Patent number 6,702,192
                                
 
                                - 
                                    Issue date Mar 9, 2004
                                
 
                        
                                            
                                - 
                                        
                                    Jude O. Igwemezie
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Railroad communication tie
                    
                                            
                                - 
                                    Patent number 6,604,689
                                
 
                                - 
                                    Issue date Aug 12, 2003
                                
 
                        
                                            
                                - 
                                        
                                    Tie & Track Systems, Inc.
                                 
                                - 
                                        
                                    Alan  Briggs
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Rail fastening devices
                    
                                            
                                - 
                                    Patent number 6,431,463
                                
 
                                - 
                                    Issue date Aug 13, 2002
                                
 
                        
                                            
                                - 
                                        
                                    Jude O. Igwemezie
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Rail fastening devices
                    
                                            
                                - 
                                    Patent number 6,305,613
                                
 
                                - 
                                    Issue date Oct 23, 2001
                                
 
                        
                                            
                                - 
                                        
                                    Jude O. Igwemezie
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Steel railroad sleepers
                    
                                            
                                - 
                                    Patent number 6,230,981
                                
 
                                - 
                                    Issue date May 15, 2001
                                
 
                        
                                            
                                - 
                                        
                                    Corus UK Limited
                                 
                                - 
                                        
                                    Kerry  Hill
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Unitary steel railroad tie
                    
                                            
                                - 
                                    Patent number 5,836,512
                                
 
                                - 
                                    Issue date Nov 17, 1998
                                
 
                        
                                            
                                - 
                                        
                                    Tie & Track Systems, Inc.
                                 
                                - 
                                        
                                    Alan  Briggs
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Rail anchoring
                    
                                            
                                - 
                                    Patent number 4,583,685
                                
 
                                - 
                                    Issue date Apr 22, 1986
                                
 
                        
                                            
                                - 
                                        
                                    The Broken Hill Proprietary Company Limited
                                 
                                - 
                                        
                                    Dennis M. Robb
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        Steel railroad sleeper
                    
                                            
                                - 
                                    Patent number 4,417,690
                                
 
                                - 
                                    Issue date Nov 29, 1983
                                
 
                        
                                            
                                - 
                                        
                                    Omark Industries, Inc.
                                 
                                - 
                                        
                                    William F. Langman
                                 
                        
                                            
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2841338
                    
                                            
                                - 
                                    Patent number 2,841,338
                                
 
                                - 
                                    Issue date Jul 1, 1958
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2482599
                    
                                            
                                - 
                                    Patent number 2,482,599
                                
 
                                - 
                                    Issue date Sep 20, 1949
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2453132
                    
                                            
                                - 
                                    Patent number 2,453,132
                                
 
                                - 
                                    Issue date Nov 9, 1948
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2416555
                    
                                            
                                - 
                                    Patent number 2,416,555
                                
 
                                - 
                                    Issue date Feb 25, 1947
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
            - 
                
                
                    
                        2370715
                    
                                            
                                - 
                                    Patent number 2,370,715
                                
 
                                - 
                                    Issue date Mar 6, 1945
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2120887
                    
                                            
                                - 
                                    Patent number 2,120,887
                                
 
                                - 
                                    Issue date Jun 14, 1938
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2100153
                    
                                            
                                - 
                                    Patent number 2,100,153
                                
 
                                - 
                                    Issue date Nov 23, 1937
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2083109
                    
                                            
                                - 
                                    Patent number 2,083,109
                                
 
                                - 
                                    Issue date Jun 8, 1937
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        2081966
                    
                                            
                                - 
                                    Patent number 2,081,966
                                
 
                                - 
                                    Issue date Jun 1, 1937
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        1969343
                    
                                            
                                - 
                                    Patent number 1,969,343
                                
 
                                - 
                                    Issue date Aug 7, 1934
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        1969062
                    
                                            
                                - 
                                    Patent number 1,969,062
                                
 
                                - 
                                    Issue date Aug 7, 1934
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        1948562
                    
                                            
                                - 
                                    Patent number 1,948,562
                                
 
                                - 
                                    Issue date Feb 27, 1934
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        1906006
                    
                                            
                                - 
                                    Patent number 1,906,006
                                
 
                                - 
                                    Issue date Apr 25, 1933
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
                                 
                        
                 
             
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                        1874987
                    
                                            
                                - 
                                    Patent number 1,874,987
                                
 
                                - 
                                    Issue date Aug 30, 1932
                                
 
                        
                                                                
                                - 
                                        
                                    E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES