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| Patents Granted on 1877-11-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 197,253 | Nov. 20, 1877 | C.H. Covell | Improvement In Wrenches | screw adjust wrenches | |
| 197,317 | Nov. 20, 1877 | S. Bedford | Improvement in Drawing-Knives | draw knives | |
| 197,325 | Nov. 20, 1877 | I.S. Brown, C.N. Brown | Improvement in planing-saws | insertable saw teeth | |
| 197,394 | Nov. 20, 1877 | P. Vollmar, J. Naylor, Jr. | Improvement in stave-jointing machines | barrel making machines | |
| 197,417 | Nov. 20, 1877 | A. Shoeninger | Ferules for Tool-Handles | auxiliary wrenches | |