| All Patents in class 475/218 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 887,010 | May 05, 1908 | E.J. McClellan | Speed Change Gearing | metalworking speed changing mechanisms |
| 1,692,487 | Nov. 20, 1928 | E.L. Connell | Motor-driven threading tool | |
| 1,709,233 | Apr. 16, 1929 | O.C. Schroeder | Mechanical movement | metal lathe accessories and attachments |
| 2,374,256 | Apr. 24, 1945 | W.F. Zimmermann | Gear Transmission | metalworking machine gearing |
| 2,495,312 | Jan. 24, 1950 | T. Foster, S.A. Bradenburg, C.A. Bickel | Power Unit for Machine Tools | metal lathe accessories and attachments |
