| Patents for none listed |
Patents 2761 -
2775
of 3199
      |
| Number | Date | Patentee | Title | Type |
| 4,206,548 | Jun. 10, 1980 | P. Bergman | Measuring Tool for Taper Bores | measurement gauges |
| 4,207,679 | Jun. 17, 1980 | M.L. Poage | Micrometer | micrometers |
| 4,212,336 | Jul. 15, 1980 | W.C. Smith | Screwdriver | screwdriver handles |
| D256,339 | Aug. 12, 1980 | T. Konishi | Micrometer | micrometers |
| 4,218,942 | Aug. 26, 1980 | D.F. Buccicone | Inch/Metric Thread Dial | metal lathe accessories and attachments |
| GB-2,044,482 | Oct. 15, 1980 | I.B. Golding, J. Harman | Compensating Gear Transmission Errors in Positional Control Apparatus | machine tool controls |
| GB-2,051,630 | Jan. 21, 1981 | J. Harman | Indexing Mechanism for a Machine Tool | indexers and dividers |
| GB-2,053,748 | Feb. 11, 1981 | J. Harman | Locking Device for Indexing Mechanism for a Machine Tool | indexers and dividers |
| GB-2,053,749 | Feb. 11, 1981 | J. Harman | Tool Holders | metalworking machine tool holders |
| 4,255,861 | Mar. 17, 1981 | H. Suwa, K. Nakata | Electrically Digital Display Micrometer | micrometers |
| 4,256,295 | Mar. 17, 1981 | E.A. Egner | Adjustable Clamp | clamps |
| 4,262,527 | Apr. 21, 1981 | J.A. Thompson, D.D. Grover | Self-Adjusting Engine Timing Pickup Probe | |
| 4,267,627 | May 19, 1981 | R. Douglas | Attachment for Valve Spring Depressing Tool | valve spring tools |
| 4,274,309 | Jun. 23, 1981 | P.E. Lenker | Method of Manufacture of Certain Hand Wrenches and the Like | ratchet wrenches |
| 4,280,379 | Jul. 28, 1981 | K.K. Chow | Reversible Ratchet Wrench | ratchet wrenches |
