| All Patents in class 279/97 |
Patents 31 -
42
of 42
      |
| Number | Date | Patentee | Title | Type |
| 1,971,289 | Aug. 21, 1934 | E.C. Swanson, J.H. Abramson | Ratcheting Screwdriver | spiral screwdrivers |
| 1,980,336 | Nov. 13, 1934 | F.O. Hoagland | Chuck Retaining Means | metal lathe chucks |
| 2,231,252 | Feb. 11, 1941 | W.L. Chesterman | Tool Holder | metalworking machine tool holders |
| 2,433,127 | Dec. 23, 1947 | R.B. Kinzbach | Machine Tool Holder | metalworking machine tool holders |
| 2,509,990 | May 30, 1950 | O.E. Schauer | Tool ejector | drill presses |
| 2,781,199 | Feb. 12, 1957 | A.G. Veldhuizen | Device for Clamping a Tool or a Disc on the Holder of a Machine Tool | metalworking machine tool holders |
| 2,790,647 | Apr. 30, 1957 | E.M. Liberty, L.J. Gorgol | Transverse Pin Tool Holder | drilling and boring tool holders |
| 2,816,770 | Dec. 17, 1957 | A.N. Sweeny, C.B. De Vlieg | Tool Holder and Adapter | metalworking machine tool holders |
| 2,954,994 | Oct. 04, 1960 | R.T. Beers | Socket Retainer for Rotary Power Tools | wrench sockets |
| 2,960,344 | Nov. 15, 1960 | A.I. Zagar | Adjustable collet-type chuck | collets and collet holders |
| 3,618,962 | Nov. 09, 1971 | J.E. Mix, J.R. Cox | Collet Chuck | lathe tools |
| 5,595,099 | Jan. 21, 1997 | D.S. Pusateri | Stress Reduced Pinned Anvil and Socket Tool | wrench components |
