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| All Patents in class 137/454.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 632,762 | Sep. 12, 1899 | H. Smith | Gas Engine | gas and gasoline engines | |
| 643,876 | Feb. 20, 1900 | F. Lane | Pressure Gage | vacuum and pressure gauges | |
| 1,708,158 | Apr. 09, 1929 | E.H. Stedman | Valve structure for compressors | air compressors | |