| All Patents in class 192 |
Patents 631 -
645
of 988
      |
| Number | Date | Patentee | Title | Type |
| 1,917,531 | Jul. 11, 1933 | J.F. Lincoln | Electric Arc Welding Apparatus | welding machines |
| 1,928,162 | Sep. 26, 1933 | H.H. Asbridge | Precision grinding or abrading machine | grinding machines |
| 1,928,711 | Oct. 03, 1933 | H.C. Walsh | Power press | punch presses |
| 1,930,319 | Oct. 10, 1933 | W.F. Ocenasek | Friction clutch | woodworking power transmission |
| 1,936,640 | Nov. 28, 1933 | E.M. Pfauser | Reversible Friction Clutch | ratchet wrenches |
| 1,938,780 | Dec. 12, 1933 | L.F. Nenninger, B. Sassen | Power Operated Clutch for Machine Tools | metalworking power transmission |
| 1,945,496 | Jan. 30, 1934 | G.A. Highberg, H.E. Sloan | Press Actuating Mechanism | punch presses |
| 1,947,892 | Feb. 20, 1934 | H.C. Walsh, E.H. Hall | Power press control | punch presses |
| 1,948,037 | Feb. 20, 1934 | F.S. Kingston | Electric motor | electric motors |
| 1,953,179 | Apr. 03, 1934 | F.S. Kingston | Clutch | industrial machine clutches |
| 1,962,715 | Jun. 12, 1934 | F.A. Heilman | Vibrating riveter control | riveting machines |
| 1,971,955 | Aug. 28, 1934 | W.G. Hoelscher | Reversing Gear and Clutch Mechanism | metalworking power transmission |
| 1,972,359 | Sep. 04, 1934 | C.F. Schenck | Feed mechanism for tool-carrying spindles | drill presses |
| 1,975,008 | Sep. 25, 1934 | E.J. Kingsbury | Machine tool having an indexing movement | metalworking machine mechanisms |
| 1,976,943 | Oct. 16, 1934 | D.C. Klausmeyer | Torque discriminator | radial drill presses |
