| All Patents in class 403 |
Patents 511 -
525
of 708
      |
| Number | Date | Patentee | Title | Type |
| 1,864,466 | Jun. 21, 1932 | J.M. Peterson | Tool Holder | tool holders |
| 1,889,571 | Nov. 29, 1932 | J.M. Redinger | Mill Chuck | milling machine tools |
| 1,892,813 | Jan. 03, 1933 | E.H. Sheldon | Desk structure | |
| 1,896,645 | Feb. 07, 1933 | E.M. Pfauser | Coupling For Socket Wrenches | socket wrenches |
| 1,904,042 | Apr. 18, 1933 | F.A. Everts | Tool Holder | metalworking machine tool holders |
| 1,906,902 | May 02, 1933 | V.S. Firestone, F. Sward | Brush holder | |
| 1,907,459 | May 09, 1933 | A.L. Stowell | Folding rule | folding rules |
| 1,908,592 | May 09, 1933 | H.L. Flather | Work Rotating Structure for Machine Tools | metalworking machine mechanisms |
| 1,910,296 | May 23, 1933 | F.C. King | Punch Retainer Mechanism | punch presses |
| 1,917,531 | Jul. 11, 1933 | J.F. Lincoln | Electric Arc Welding Apparatus | welding machines |
| 1,927,844 | Sep. 26, 1933 | E.M. Pfauser | Socket Wrench | wrench handle components |
| 1,933,524 | Oct. 31, 1933 | H.H. Flather, administrator, J.H. Flather, administrator, H.L. Flather, deceased (estate of) | Work Rotating Structure for Machine Tools | metalworking machine mechanisms |
| 1,934,910 | Nov. 14, 1933 | J.F. Buhr | Collet Means | drill press accessories |
| 1,937,948 | Dec. 05, 1933 | H.H. Flather, administrator, J.H. Flather, administrator, H.L. Flather, deceased (estate of) | Work Rotating Structure for Machine Tools | metalworking machine mechanisms |
| 1,940,455 | Dec. 19, 1933 | A.E. Kilpela | Gear Retaining Means | metalworking machine gearing |
