| All Patents in class 451/244 |
Patents 31 -
45
of 74
      |
| Number | Date | Patentee | Title | Type |
| 1,847,466 | Mar. 01, 1932 | G.W. Binns | Grinding Machinery | grinding machines |
| 1,850,054 | Mar. 15, 1932 | T. Zimmerman, S.A. Strickland | Centerless Grinder | grinding machines |
| 1,850,372 | Mar. 22, 1932 | G.W. Binns | Grinding Machine | grinding machines |
| 1,851,265 | Mar. 29, 1932 | T. Zimmerman, S.A. Strickland | Feeding Mechanism for Grinders | grinding machines |
| 1,862,882 | Jun. 14, 1932 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,864,129 | Jun. 21, 1932 | H. Fritschi | Machine Tool Structure | grinding machines |
| 1,864,578 | Jun. 28, 1932 | G.W. Binns | Grinding Machine | grinding machines |
| 1,864,589 | Jun. 28, 1932 | H. Ernst | Grinding Machinery | grinding machines |
| 1,872,405 | Aug. 16, 1932 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,877,515 | Sep. 13, 1932 | C.G. Liljeberg | Grinding Machine | grinding machines |
| 1,896,481 | Feb. 07, 1933 | R.A. Cole | Centerless Grinding Machine | grinding machines |
| 1,904,642 | Apr. 18, 1933 | C.G. Hunt | Grinding Machine | grinding machines |
| 1,919,143 | Jul. 18, 1933 | G.W. Binns | Grinding Machine | grinding machines |
| 1,932,952 | Oct. 31, 1933 | G.W. Binns | Grinding Machine | grinding machines |
| 1,938,764 | Dec. 12, 1933 | H. Fritschi, F.S. Haas | Grinding Machine | grinding machines |
