| All Patents in class 451/242 |
Patents 46 -
60
of 109
      |
| Number | Date | Patentee | Title | Type |
| 1,949,345 | Feb. 27, 1934 | H.H. Asbridge | Grinding or abrading machine | |
| 1,952,157 | Mar. 27, 1934 | G.N. Barrere, F.J. Theler, J.E. Caster | Grinding Machinery | grinding machines |
| 1,954,442 | Apr. 10, 1934 | H. Ernst, A.H. Dall | Grinding Machine | grinding machines |
| 1,976,110 | Oct. 09, 1934 | G.W. Binns | Grinding Machine | grinding machines |
| 1,976,111 | Oct. 09, 1934 | C. Booth, G.W. Binns | Machine Tool | grinding machines |
| 1,976,123 | Oct. 09, 1934 | F.S. Haas | Grinding Machinery | grinding machines |
| 1,976,124 | Oct. 09, 1934 | F.S. Haas | Machine Tool | grinding machines |
| 1,982,298 | Nov. 27, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,985,237 | Dec. 25, 1934 | C. Booth | Grinding Machine | grinding machines |
| 1,985,433 | Dec. 25, 1934 | A. Turner | Grinding Machine | grinding machines |
| 1,991,953 | Feb. 19, 1935 | L.F. Nenninger | Grinding Machine | grinding machines |
| 1,993,823 | Mar. 12, 1935 | G.W. Binns | Art of Grinding | grinding machines |
| 1,993,830 | Mar. 12, 1935 | R.E. Conover | Grinding Machine | grinding machines |
| 2,000,586 | May 07, 1935 | C. Booth, A.W. Foerster | Grinding Machine | grinding machines |
| 2,000,614 | May 07, 1935 | E.G. Roehm | Grinding Machine | grinding machines |
