| All Patents in class 408/128 |
Patents 31 -
43
of 43
      |
| Number | Date | Patentee | Title | Type |
| 1,947,862 | Feb. 20, 1934 | H.N. Stephan, H.M. Lucas | Special High Speed Drive for the Spindle of Boring Machine and Other Machine Tools | horizontal boring mills |
| 1,987,979 | Jan. 15, 1935 | E. Sobolewski | Safety power traverse for radial drill heads | radial drill presses |
| 2,072,646 | Mar. 02, 1937 | W.F. Ocenasek | Drill press spindle drive and mounting | drill presses |
| 2,154,745 | Apr. 18, 1939 | T.L. Hedgpeth | Power driven tool | drill presses |
| 2,266,829 | Dec. 23, 1941 | E.J. Svenson | Metal Working Apparatus | metalworking machine mechanisms |
| 2,297,078 | Sep. 29, 1942 | F.W. Schlichter | Drill press | drill presses |
| 2,473,963 | Jun. 21, 1949 | R.E. McKelvey | Speed selection unit | drill presses |
| 2,619,842 | Dec. 02, 1952 | P.C. Felix | Variable-speed drive for machine tools | drill presses |
| 2,621,686 | Dec. 16, 1952 | J.E. Tompkins | Machine tool with motor-driven rotary and axially fed tools | radial arm saws |
| 2,682,182 | Jun. 29, 1954 | J.B. Armitage | Machine Tool | milling machines |
| 2,960,893 | Nov. 22, 1960 | W.F. Ocenasek | High-speed, sensitive drilling attachment | drill presses |
| 3,011,533 | Dec. 05, 1961 | H.A. Newman, Sr. | Combination power tool with adjustable tool spindle | tablesaws |
| 4,679,970 | Jul. 14, 1987 | R.T. Woythal, E.R. Lohneis | High Speed Toolholder for a Machining Center | metalworking machine tool holders |
