| Patents for John E. Caster |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 1,665,084 | Apr. 03, 1928 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,707,708 | Apr. 02, 1929 | J.E. Caster | Process for the Production of Spherical Articles | grinding machines |
| 1,733,863 | Oct. 29, 1929 | J.E. Caster | Centerless Grinding | grinding machines |
| 1,776,241 | Sep. 16, 1930 | J.E. Caster, F.S. Haas | Grinding Machinery | grinding machines |
| 1,791,442 | Feb. 03, 1931 | J.E. Caster | Grinding Machine | grinding machines |
| 1,791,713 | Feb. 10, 1931 | L.F. Nenninger, J.E. Caster | Centerless Grinder | grinding machines |
| 1,814,367 | Jul. 14, 1931 | J.E. Caster | Long Bar Grinder | grinding machines |
| 1,814,431 | Jul. 14, 1931 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,822,337 | Sep. 08, 1931 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,862,882 | Jun. 14, 1932 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,872,405 | Aug. 16, 1932 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,932,969 | Oct. 31, 1933 | J.E. Caster, C.W. Hopkins | Grinding Machine | grinding machines |
| 1,952,157 | Mar. 27, 1934 | G.N. Barrere, F.J. Theler, J.E. Caster | Grinding Machinery | grinding machines |
| 1,981,220 | Nov. 20, 1934 | J.E. Caster | Art of Grinding | grinding machines |
| 2,010,347 | Aug. 06, 1935 | J.E. Caster | Grinding Machine | grinding machines |
