| Patents Granted on 1912-03-12 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| D42,305 | Mar. 12, 1912 | J.L. Sommer | Design for a Bottle-Opener | corkscrew accessories |
| D42,306 | Mar. 12, 1912 | J.L. Sommer | Bottle Opener | can and jar openers |
| 1,019,798 | Mar. 12, 1912 | T. Trecker, E.J. Kearney | Speed-changing gearing | milling machines |
| 1,019,825 | Mar. 12, 1912 | F. Mossberg | Ratchet Wrench | ratchet wrenches |
| 1,019,835 | Mar. 12, 1912 | H. Prack | Tool For Removing Insulation From Wires | cutting |
| 1,019,856 | Mar. 12, 1912 | J.L. Strickland | Rotary internal-combustion engine | internal combustion engines |
| 1,020,132 | Mar. 12, 1912 | J.C. Dietrich | Hose-supporter | |
