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| All Patents in class 73/511 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 14,967 | May 27, 1856 | W.W. Mead | Governor | ||
 | 353,367 | Nov. 30, 1886 | A.W. Meston | Governor for electric motors | |
| 588,656 | Aug. 24, 1897 | J.F. Raders | Non-Centrifugal Governor and Speed Indicator | ||
| 591,447 | Oct. 12, 1897 | B.C. Ball, F.H. Ball | Engine Governor | ||
| 680,745 | Aug. 20, 1901 | J. Sturgess | Speed Regulator | ||
| 735,408 | Aug. 04, 1903 | D.W. Payne | Engine Governor | ||