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| Patents for John Brewer | |||||
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| Number | Date | Patentee | Title | Type | |
| 79,198 | Jun. 23, 1868 | J. Brewer | Expanding Tap | ||
| 183,485 | Oct. 24, 1876 | J. Brewer | Combined Wrench and Pipe-Cutter | pipe wrenches | |
| 207,102 | Aug. 20, 1878 | J. Brewer | Pipe-Wrench With Cutter | combination tools | |