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| Patents Granted on 1921-04-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,374,967 | Apr. 19, 1921 | W.H. Trout | Band-mill | band sawmills | |
| 1,375,007 | Apr. 19, 1921 | A. Kimble | Insulated squirrel-cage winding | motor windings | |
| 1,375,024 | Apr. 19, 1921 | A.M. Sosa | Feeding Mechanism for Metal Working Machinery | metalworking machine mechanisms | |
| 1,375,530 | Apr. 19, 1921 | C.G. Moline | Wrench | screw adjust wrenches | |
| 1,375,630 | Apr. 19, 1921 | C.W. Crogan | Drum handle for tape line reels | tape measures | |