| Patents Granted on 1930-08-12 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 1,772,461 | Aug. 12, 1930 | C.B. Jahnke | Lubrication Means | internal combustion engine lubrication |
| 1,772,499 | Aug. 12, 1930 | E.C. Rumsey | Signal | |
| 1,772,514 | Aug. 12, 1930 | J. Hoogerhyde | Four-way blocking clamp | clamps |
| 1,772,524 | Aug. 12, 1930 | W.A. Seidemann | Ratchet Wrench | ratchet wrenches |
| 1,772,544 | Aug. 12, 1930 | L.R. Heim | Truing Device for Abrasive Wheels Used in Producing Ground Articles | grinding machines |
| 1,772,599 | Aug. 12, 1930 | J.E. Dobson | Press for forging or shaping metal | forging presses |
| 1,772,655 | Aug. 12, 1930 | J.H. Yeager | Dynamo-electric machine | electric motors |
| 1,772,723 | Aug. 12, 1930 | W.F. Klein | Method Of Making Socket Wrenches | wrench sockets |
| 1,772,932 | Aug. 12, 1930 | S. Einstein | Grinding Machinery | grinding machines |
| 1,772,964 | Aug. 12, 1930 | R.F. Shunk | Handle switch construction | vacuum cleaners |
