-
3499503
-
Patent number 3,499,503
-
Issue date Mar 10, 1970
-
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
-
2194304
-
Patent number 2,194,304
-
Issue date Mar 19, 1940
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
1525228
-
Patent number 1,525,228
-
Issue date Feb 3, 1925
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
1425000
-
Patent number 1,425,000
-
Issue date Aug 8, 1922
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
1378658
-
Patent number 1,378,658
-
Issue date May 17, 1921
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...