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| All Patents in class 137/513.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 627,623 | Jun. 27, 1899 | E. McCoy | Lubricator | steam engine lubricators | |
| 668,954 | Feb. 26, 1901 | C.E. Dawson | Explosion Engine | cooling apparatus | |