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| Patents Granted on 1957-09-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| D181,023 | Sep. 17, 1957 | N. Rhoades | Electric Starter for Gasoline Engines | starters | |
| 2,806,491 | Sep. 17, 1957 | R.C. Kaley | Combination adjustment and locking device for a jointed supporting arm for a power tool | radial arm saws | |
| 2,806,493 | Sep. 17, 1957 | W.L. Gaskell | Work guide fence | tablesaw accessories | |