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| All Patents in class 188/295 | |||||
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| Number | Date | Patentee | Title | Type | |
| 125,084 | Mar. 26, 1872 | N.G. Herreshoff, E. Reynolds | Improvement in Governors for Steam Engines | steam engine governors | |
| 1,395,340 | Nov. 01, 1921 | F.L. Gormley | Speed Retarding Device for Lifting Jacks | lifting tools | |