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| Patents for Peter L. Weimer | |||||
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| Number | Date | Patentee | Title | Type | |
| 10,486 | Jan. 31, 1854 | P.L. Weimer | Steam Hammer | steam hammers | |
| 13,608 | Sep. 25, 1855 | P.L. Weimer | Trip-Hammer | trip and helve hammers | |
| 16,515 | Jan. 27, 1857 | S.P. Francisco, P.L. Weimer | Steam Hammer | steam hammers | |