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| All Patents in class 73/542 | |||||
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| Number | Date | Patentee | Title | Type | |
| 148,913 | Mar. 24, 1874 | M. Andrade | Governors | machine governors | |
| 333,130 | Dec. 29, 1885 | J. Kaiser | Governor for Steam Engines | steam engine governors | |
| 340,978 | May 04, 1886 | J. Casho | Governor | traction engine governors | |
| 707,792 | Aug. 26, 1902 | J.A. Seymour, J.E. McIntosh | Adjuster for Centrifugal Governors | steam engine governors | |