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| Patents for John A. Peer | |||||
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| Number | Date | Patentee | Title | Type | |
| 153,370 | Jul. 21, 1874 | J.A. Peer | Gear Cutting Machines | gear making machines | |
| 205,296 | Jun. 25, 1878 | J.A. Peer | Adjusting cutters | cutterheads | |
| 279,780 | Jun. 19, 1883 | F.L. Magaw | Chain sawing-machine | other wood sawing machines | |
| 279,781 | Jun. 19, 1883 | F.L. Magaw | Chain cutter | sawblades | |
| 282,765 | Aug. 07, 1883 | J.A. Peer | Chuck | ||