| All Patents in class 137/553 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 158,300 | Dec. 29, 1874 | M. Muchin | Governors for Steam Engines |
| | 1,161,861 | Nov. 30, 1915 | F.W. Hodges | Valve |
| | 1,621,738 | Mar. 22, 1927 | H.S. Baker, J.W. Motherwell | Retard device |
| | 2,167,433 | Jul. 25, 1939 | G.B. Duffield | Air Vent Valve |
| | 2,313,438 | Mar. 09, 1943 | W.G. Hoelscher | Fluid Operated Gear Shifting Mechanism |
| | 2,737,401 | Mar. 06, 1956 | G.W. Lindsay | Fuel servicing nozzle |
| | 2,805,552 | Sep. 10, 1957 | C.F. Pabst, H.R. Hudson | Pre-Selector Dial Devices |
| | 3,505,972 | Apr. 14, 1970 | P.M. Benjamin | Deck Box for a Valve Operator |
