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| All Patents in class 92/154 | |||||
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| Number | Date | Patentee | Title | Type | |
| 514,169 | Feb. 06, 1894 | N. Tesla | Reciprocating engine | ||
| 1,523,605 | Jan. 20, 1925 | H.G. Mueller | Method of Introducing Lubricants to Pressure Cylinders and Apparatus Therefor | steam engine lubricators | |