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| Patents for Frederick C. Geyer | |||||
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| Number | Date | Patentee | Title | Type | |
| 385,284 | Jun. 26, 1888 | J. Ross | Wood-planing machine | wood planers | |
| 387,389 | Aug. 07, 1888 | F. Batt | Shingle-trimming machine | shingle machines | |
| 399,900 | Mar. 19, 1889 | R.H. Hoyt | Sawing-machine | circular ripsaws | |
| 415,438 | Nov. 19, 1889 | E.M. Birdsall | Steam-engine | steam engines | |
| 437,941 | Oct. 07, 1890 | F.A. Shoemaker | Steam-engine | steam engines | |
| 441,900 | Dec. 02, 1890 | J. Ross | Drilling Machine | drill presses | |