| Patents Granted on 1931-03-03 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 1,794,361 | Mar. 03, 1931 | L.F. Nenninger, B.P. Graves, E.J. Kearney, J.B. Armitage | Milling-Machine Spindle and Tool | milling machine tools |
| 1,794,423 | Mar. 03, 1931 | R.A. Ashton, E.R. Smith | Cam Actuated Lathe | metal lathes |
| 1,794,441 | Mar. 03, 1931 | E.P. Bullard, Jr. | Vertical Turret Lathe | vertical turret lathes |
| 1,794,472 | Mar. 03, 1931 | F.H. Mussler | Hydraulic Change-Speed-Gear Mechanism | |
| 1,794,649 | Mar. 03, 1931 | A.W. Siler | Protecting and Cooling Means for Dynamo Electric Machines | motor cooling |
| 1,794,663 | Mar. 03, 1931 | G.R. Anderson | Protecting and heat-radiating means for electric motors | repulsion start induction run motors |
| 1,794,673 | Mar. 03, 1931 | F.L. Creager | Spark Plug Cover | ignition systems |
| 1,794,758 | Mar. 03, 1931 | I.F. Ditmar | Sawing machine | circular saws |
| 1,794,836 | Mar. 03, 1931 | R.E. De Walt | Woodworking machine | radial arm saws |
| 1,794,963 | Mar. 03, 1931 | E.A. Kane | Threading Die and Holder | taps and dies |
| 1,794,975 | Mar. 03, 1931 | R. Mershon | Grinding Machine | grinding machines |
| 1,795,063 | Mar. 03, 1931 | H. Weichsel | Alternating-current motor | AC motors |
| 1,795,227 | Mar. 03, 1931 | W.E. Pelton, D.L. Miller | Safety Ax | |
| 1,795,262 | Mar. 03, 1931 | H.L. Myers | Base machine | |
