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| All Patents in class 137/906 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,424 | Mar. 11, 1856 | E. Tracy | Wrench | nut wrenches | |
| 94,668 | Sep. 07, 1869 | H. Thompson | Improvement in sawing-machine | circular resaws | |
| 229,881 | Jul. 13, 1880 | H.F. Gaskill | Pump Valve | pump valves | |
| 276,805 | May 01, 1883 | W.H. Guild | Pump Valve | pump valves | |
| 292,396 | Jan. 22, 1884 | C. Ahrens | Pump-valve | pump valves | |
| 1,346,921 | Jul. 20, 1920 | E. Terry | Automatic Valve | water valves | |