| Patents for Edward A. Allen |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 2,370,580 | Feb. 27, 1945 | E.A. Allen, R.S. Pyne | Cross-feed mechanism for grinding machines |
| | 2,381,687 | Aug. 07, 1945 | E.A. Allen, R.S. Pyne | Drive for oscillating grinders |
| | 2,412,937 | Dec. 24, 1946 | E.A. Allen | Boring head |
| | 2,416,996 | Mar. 04, 1947 | E.A. Allen, F.P. Healy | Boring bar guiding mechanism |
| | 2,479,973 | Aug. 23, 1949 | F.P. Healy, J.Y. Scott, E.A. Allen | Chuck |
| | 2,657,470 | Nov. 03, 1953 | E.A. Allen, F.P. Healy | Presetting device for boring tools |
| | 3,060,812 | Oct. 30, 1962 | E.A. Allen, F.P. Healy | Milling machine |
| | 3,075,413 | Jan. 29, 1963 | E.A. Allen, F.P. Healy | Automotive Brake Drum Lathe |
