| Patents Granted on 1921-05-10 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| D57,812 | May 10, 1921 | S.D. Black, A.G. Decker | Design for a housing for electric air compressors and motors | air compressors |
| 1,377,178 | May 10, 1921 | A.G. Andree | Wrench | basin wrenches |
| 1,377,202 | May 10, 1921 | H.B. Keiper | Combined vise, blower, forge, drill, and grinder | vises |
| 1,377,288 | May 10, 1921 | A.L. Soresi | Rotary cutting and drilling instrument | handheld power tools |
| 1,377,479 | May 10, 1921 | C.C. Hansen | Liquid-fuel burner | fuel burners |
| 1,377,687 | May 10, 1921 | C.B. Jahnke | Oil Burning Torch | torches |
| 1,377,772 | May 10, 1921 | A.B. Heimbach | Wrench | quick adjust wrenches |
| 1,377,799 | May 10, 1921 | J. Brock | Horseshoe-punching machine | horseshoe making machines |
| 1,377,945 | May 10, 1921 | E. Ulven | Weather-Board Gage | clapboard markers |
