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| Patents for Le Grand Skinner | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,033,280 | Jul. 23, 1912 | E.F. Williams, L. Skinner | Steam Engine | ||
| 1,109,807 | Sep. 08, 1914 | L. Skinner, E.F. Williams | Valve Gear for Steam Engines | ||
| 1,111,983 | Sep. 29, 1914 | L. Skinner, E.F. Williams | Automatic Exhaust Valve | ||
| 1,142,853 | Jun. 15, 1915 | E.F. Williams, L. Skinner | Steam Engine Valve Gear | ||
| GB-157,830 | Feb. 09, 1922 | L. Skinner | Improvements Relating to Engine Valve Gears | ||
| CA-221,674 | Aug. 01, 1922 | L. Skinner | Mecanisme du Tiroir de Machine | ||