| Patents Granted on 1930-11-11 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,781,110 | Nov. 11, 1930 | H.W. Jacobson | Lubrication System for Shaping Machines | metal shapers |
| 1,781,114 | Nov. 11, 1930 | F.J. Lapointe | Hydraulic broaching machine | broaching machines |
| 1,781,165 | Nov. 11, 1930 | A.A. Criqui | Centrifugal fan | fans and blowers |
| 1,781,192 | Nov. 11, 1930 | H.G. Procunier | Tapping attachment | tapping heads and chucks |
| 1,781,274 | Nov. 11, 1930 | W.C. De Roo | Feed-control mechanism | drill presses |
| 1,781,416 | Nov. 11, 1930 | G.D. Sundstrand | Pump | |
| 1,781,441 | Nov. 11, 1930 | J.R. Cook | Electric switch | electric switches |
| 1,781,470 | Nov. 11, 1930 | E. Mueller | Screw holding screwdriver | screw starters |
| 1,781,554 | Nov. 11, 1930 | A.G. Norton | Lubricator | oil pumps |
