| Patents for Roger S. Pyne |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,036,656 | Apr. 07, 1936 | R.S. Pyne, B.F. Stowell | Valve seat cutter | valve and seat maintenance |
| 2,149,409 | Mar. 07, 1939 | F.D. Van Norman, B.F. Stowell, R.S. Pyne | Oscillating grinder | grinders |
| 2,334,581 | Nov. 16, 1943 | R.S. Pyne | Cross-feed for grinding machines | cylindrical grinders |
| 2,370,580 | Feb. 27, 1945 | E.A. Allen, R.S. Pyne | Cross-feed mechanism for grinding machines | grinders |
| 2,381,687 | Aug. 07, 1945 | E.A. Allen, R.S. Pyne | Drive for oscillating grinders | grinders |
| 2,413,068 | Dec. 24, 1946 | R.S. Pyne | Diaphragm chuck | cylindrical grinders |
| 2,584,499 | Feb. 05, 1952 | R.S. Pyne | Apparatus for precision bore grinding | grinders |
| 2,727,339 | Dec. 20, 1955 | R.M. Anderson, R.S. Pyne | Grinding wheel feed for grinding machines | cylindrical grinders |
| 2,897,636 | Aug. 04, 1959 | R.S. Pyne, A.H. Tompkins | Work rest for a centerless grinder | centerless grinders |
