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| Patents Granted on 1930-04-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,755,238 | Apr. 22, 1930 | W.L. Bryant | Wheel head and the like | grinders | |
| 1,755,269 | Apr. 22, 1930 | G.C. Pearson | Tool Holder | tool holders | |
| 1,755,353 | Apr. 22, 1930 | L.S. Hubbert | Filter Pot Press | liquid extracting machines | |
| 1,755,822 | Apr. 22, 1930 | W.F. Hobbs | Screw Driver and Method of Making the Same | screwdriver handles | |
| 1,755,894 | Apr. 22, 1930 | D.F. Printz | Jointer attachment for portable sawing machines | jointers | |