| Patents Granted on 1980-11-?? |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 4,231,691 | Nov. 04, 1980 | H. Woerz, D. Pape | Dual Cutter Boring Head | boring heads |
| GB-2,045,668 | Nov. 05, 1980 | J. Harman | Machine Tooling Arrangement | |
| 4,232,856 | Nov. 11, 1980 | T.J. Eichfeld, H.C. Disston, Jr. | Work holding table | drill press accessories |
| CA-1,090,108 | Nov. 25, 1980 | R. Johnstone | Unmanned machining center with tool checking | tool changers and storage mechanisms |
| CA-1,090,109 | Nov. 25, 1980 | R. Johnstone | Method of cleaning chips from a work-piece in an unmanned machining center | metalworking machine mechanisms |
