| All Patents in class 409/348 |
Patents 31 -
38
of 38
      |
| Number | Date | Patentee | Title | Type |
| 2,269,320 | Jan. 06, 1942 | W.C. Rosborough | Retractable Tool Holder | drilling and boring tool holders |
| 2,387,012 | Oct. 16, 1945 | J. Daugherty | Tool Lifter for Machine Tools | metal planers |
| 2,520,292 | Aug. 29, 1950 | J.M. Walter | Planer Toobox | metal planers |
| 2,525,216 | Oct. 10, 1950 | R.A. Garrand | Toolholder | metalworking machine tool holders |
| 2,538,629 | Jan. 16, 1951 | W.F. Raffke | Tool lifter | metal shapers |
| 2,940,368 | Jun. 14, 1960 | G.E. Marx, J.M. Walter | Machine Tool | metal planers |
| 3,320,831 | May 23, 1967 | E.P. Bullard, III | Retractable Tool Support | |
| 3,323,393 | Jun. 06, 1967 | F.H. Soykan | Four-Link Boring Bar | |
