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| All Patents in class 137/625.34 | |||||
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| Number | Date | Patentee | Title | Type | |
| 17,433 | Jun. 02, 1857 | L.J. Knowles | Faucet | ||
| 51,037 | Nov. 21, 1865 | R.W. Gardner | Governor Valve | steam engine governors | |
| 176,204 | Apr. 18, 1876 | D. Shive | Governor Valve | steam engine governors | |
| 335,892 | Feb. 09, 1886 | J.P. Kern, J.C. Cosford | Steam Engine Governor | steam engine governors | |
| 1,574,761 | Mar. 02, 1926 | A.D. Skinner | Valve Mechanism | steam engine valve gear | |