| All Patents in class 279/42 |
Patents 31 -
44
of 44
      |
| Number | Date | Patentee | Title | Type |
| 929,231 | Jul. 27, 1909 | J.A. Leland | Bit Extension | drill bit extensions |
| 939,079 | Nov. 02, 1909 | W.A. Peck | Tool Holder | tool holders |
| 965,970 | Aug. 02, 1910 | F.O. Wells | Tap Wrench | tap wrenches and die stocks |
| 1,022,450 | Apr. 09, 1912 | C.H. Waymoth | Spindle-turning lathe | wood lathes |
| 1,024,126 | Apr. 23, 1912 | M.D. Fletcher | Wheel Dresser and Tool Holder | grinder dressers |
| 1,041,858 | Oct. 22, 1912 | D.J. Normoyle | Tap Wrench | tap wrenches and die stocks |
| 1,116,532 | Nov. 10, 1914 | R.A. Armstrong | Screwdriver Attachment | screwdrivers |
| 1,615,233 | Jan. 25, 1927 | J.M. Redinger | Cutter Holder | metalworking machine tool holders |
| 1,702,132 | Feb. 12, 1929 | J.M. Redinger | Milling Cutter | milling machine tools |
| 1,715,097 | May 28, 1929 | J.M. Redinger | Milling Cutter | milling machine cutters |
| 1,758,261 | May 13, 1930 | J.A. Leland | Tool and article holder | drill bit extensions |
| 2,098,675 | Nov. 09, 1937 | H.G. Procunier | Tool-holding chuck and collet therefor | tap and die holders |
| 2,634,775 | Apr. 14, 1953 | P.H. Unsinger | Chisel Type Blade for Carving Tools | carving chisels |
| 2,913,935 | Nov. 24, 1959 | W.B. Stein, R.E. Novkov, F.A. Flannery | Tool Holder | drilling and boring tool holders |
