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                        2768769
                    
                                            
                                - 
                                    Patent number 2,768,769
                                
 
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                                    Issue date Oct 30, 1956
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        2648349
                    
                                            
                                - 
                                    Patent number 2,648,349
                                
 
                                - 
                                    Issue date Aug 11, 1953
                                
 
                        
                                                                
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                                    E03 - WATER SUPPLY SEWERAGE
                                 
                        
                 
             
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                        2503631
                    
                                            
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                                    Patent number 2,503,631
                                
 
                                - 
                                    Issue date Apr 11, 1950
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        2286560
                    
                                            
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                                    Patent number 2,286,560
                                
 
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                                    Issue date Jun 16, 1942
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        2134412
                    
                                            
                                - 
                                    Patent number 2,134,412
                                
 
                                - 
                                    Issue date Oct 25, 1938
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        1342516
                    
                                            
                                - 
                                    Patent number 1,342,516
                                
 
                                - 
                                    Issue date Jun 8, 1920
                                
 
                        
                                                                
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                        1338993
                    
                                            
                                - 
                                    Patent number 1,338,993
                                
 
                                - 
                                    Issue date May 4, 1920
                                
 
                        
                                                                
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                                    F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
                                 
                        
                 
             
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                        1338846
                    
                                            
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                                    Patent number 1,338,846
                                
 
                                - 
                                    Issue date May 4, 1920
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        1228846
                    
                                            
                                - 
                                    Patent number 1,228,846
                                
 
                                - 
                                    Issue date Jun 5, 1917
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        1200571
                    
                                            
                                - 
                                    Patent number 1,200,571
                                
 
                                - 
                                    Issue date Oct 10, 1916
                                
 
                        
                                                                
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                                    F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
                                 
                        
                 
             
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                        1177512
                    
                                            
                                - 
                                    Patent number 1,177,512
                                
 
                                - 
                                    Issue date Mar 28, 1916
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        1148674
                    
                                            
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                                    Patent number 1,148,674
                                
 
                                - 
                                    Issue date Aug 3, 1915
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        1113330
                    
                                            
                                - 
                                    Patent number 1,113,330
                                
 
                                - 
                                    Issue date Oct 13, 1914
                                
 
                        
                                                                
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                                    B60 - VEHICLES IN GENERAL
                                 
                        
                 
             
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                        1000104
                    
                                            
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                                    Patent number 1,000,104
                                
 
                                - 
                                    Issue date Aug 8, 1911
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        958504
                    
                                            
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                                    Patent number 958,504
                                
 
                                - 
                                    Issue date May 17, 1910
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        913909
                    
                                            
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                                    Patent number 913,909
                                
 
                                - 
                                    Issue date Mar 2, 1909
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        885165
                    
                                            
                                - 
                                    Patent number 885,165
                                
 
                                - 
                                    Issue date Apr 21, 1908
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        847494
                    
                                            
                                - 
                                    Patent number 847,494
                                
 
                                - 
                                    Issue date Mar 19, 1907
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        682106
                    
                                            
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                                    Patent number 682,106
                                
 
                                - 
                                    Issue date Sep 3, 1901
                                
 
                        
                                                                
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                        648346
                    
                                            
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                                    Patent number 648,346
                                
 
                                - 
                                    Issue date Apr 24, 1900
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        643126
                    
                                            
                                - 
                                    Patent number 643,126
                                
 
                                - 
                                    Issue date Feb 13, 1900
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        636727
                    
                                            
                                - 
                                    Patent number 636,727
                                
 
                                - 
                                    Issue date Nov 7, 1899
                                
 
                        
                                                                
                                - 
                                        
                                    E03 - WATER SUPPLY SEWERAGE
                                 
                        
                 
             
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                        426124
                    
                                            
                                - 
                                    Patent number 426,124
                                
 
                                - 
                                    Issue date Apr 22, 1890
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        239973
                    
                                            
                                - 
                                    Patent number 239,973
                                
 
                                - 
                                    Issue date Apr 12, 1881
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        222195
                    
                                            
                                - 
                                    Patent number 222,195
                                
 
                                - 
                                    Issue date Dec 2, 1879
                                
 
                        
                                                                
                                - 
                                        
                                    B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
                                 
                        
                 
             
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                        153986
                    
                                            
                                - 
                                    Patent number 153,986
                                
 
                                - 
                                    Issue date Aug 11, 1874
                                
 
                        
                                                                
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                                    B61 - RAILWAYS
                                 
                        
                 
             
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                        112969
                    
                                            
                                - 
                                    Patent number 112,969
                                
 
                                - 
                                    Issue date Mar 21, 1871
                                
 
                        
                                                                
                                - 
                                        
                                    B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...