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| Patents Granted on 1931-01-27 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,790,019 | Jan. 27, 1931 | G.G. Raymond | Platform | ||
| 1,790,238 | Jan. 27, 1931 | W.F. Klein | Socket Connection | socket wrenches | |
| 1,790,288 | Jan. 27, 1931 | H.E. Tautz | Fence for jointers | jointers | |
| 1,790,552 | Jan. 27, 1931 | A.F. Meehan | Alloy for manufacture of cast iron | foundryman | |
| 1,790,581 | Jan. 27, 1931 | G. Gorton, II, G. Gorton | Engraving and Other Machine | metal engraving machines | |