| All Patents in class 409/234 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 450,398 | Apr. 14, 1891 | E.A. Corliss, administratrix, G.H. Corliss, deceased (estate of) | Machine for Finishing the Ends of Cylinders of Steam Engines | metalworking machines |
| 1,191,813 | Jul. 18, 1916 | J.O. Dixon, E.S. Mummert | Facing-tool | |
| 1,231,946 | Jul. 03, 1917 | W.L. Schellenbach | Tool-holder stop mechanism | metal lathes |
| 1,337,313 | Apr. 20, 1920 | W.F. Groene | Device for connecting tools to spindles | milling machines |
| 1,439,190 | Dec. 19, 1922 | H.P. Pritchard | Boring or Surfacing Tool Holder | milling machine tools |
| 1,475,278 | Nov. 27, 1923 | L.C. Cole | Pneumatic Tool Holder | tool holders |
| 1,893,509 | Jan. 10, 1933 | E.B. Stimpson | Slotting machine | |
| 2,050,347 | Aug. 11, 1936 | E.R. Lochman | General utility machine tool | |
| 3,041,898 | Jul. 03, 1962 | B.R. Better | Tool Centering Device | tool centering apparatus |
| 3,339,458 | Sep. 05, 1967 | T.V. Williams | Rotary-Cutter Tools | milling machine tools |
| 3,699,843 | Oct. 24, 1972 | A.N. Sweeny | Tool having resilient bumper | metalworking machine tool holders |
| 4,393,626 | Jul. 19, 1983 | G.A. Schroer | Toolholder for Supporting Thin Rotary Tools | metalworking machine tool holders |
| 4,421,443 | Dec. 20, 1983 | P.J. Finet, R.T. Woythal | High Speed Machine Tool Spindle Assembly | metalworking machine mechanisms |
| 4,536,111 | Aug. 20, 1985 | E.J. Kielma | Machine Tool Having Numerically Controlled Adjustable Arbor Set Up for Straddle Milling | metalworking machine mechanisms |
| 4,547,997 | Oct. 22, 1985 | C.A. Smits, R.J. Kimmelaar | Adjustable Tool Mount | insert tool holders |
