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| All Patents in class 137/514 | |||||
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| Number | Date | Patentee | Title | Type | |
| 94,747 | Sep. 14, 1869 | B. Holly | Water Pipe Safety Valve | water valves | |
| 754,467 | Mar. 15, 1904 | N. Lombard | Relief Valve | relief valves | |
| 1,112,233 | Sep. 29, 1914 | R.C. Stevens | Poppet Valve | steam engine valves | |
| 2,345,261 | Mar. 28, 1944 | O.M. Jensen | Power-driven hack saw machine | metal sawing machines | |
| 2,660,954 | Dec. 01, 1953 | H.C. Weber | Air Volume for Water Supply Systems | tanks | |