| Patents Granted on 1980-04-?? |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| D254,655 | Apr. 08, 1980 | D. Brickwood | Micrometer | micrometers |
| 4,196,506 | Apr. 08, 1980 | R.W. Reed | Tool Changer Machining Center | tool changers and storage mechanisms |
| 4,197,040 | Apr. 08, 1980 | W.W. Wawrzyniak | Facing and Boring Head | facing heads |
| 4,197,888 | Apr. 15, 1980 | L.M. Yock, R.A. Browning, A.L. McGee | Log centering apparatus and method using transmitted light and reference edge log scanner | wood lathe accessories |
| 4,198,699 | Apr. 15, 1980 | R.W. Caddell | Mass Memory Access Method and Apparatus | machine tool controls |
| 4,198,790 | Apr. 22, 1980 | P. Gruber | Method for Finishing Spherical Rollers | profile and contour grinders |
| 4,199,286 | Apr. 22, 1980 | E.E. Kirkham | Power Drawbolt With Planetary Drive | metalworking machine mechanisms |
| 4,199,455 | Apr. 22, 1980 | M.R. Estabrook | Combined magnetic and cyclonic separating apparatus | |
