| All Patents in class 475/298 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 91,929 | Jun. 29, 1869 | A. Gauntt | Reducing Rotary Motion | industrial machine speed and direction changing mechanisms |
| 361,222 | Apr. 12, 1887 | W.S. Rogers, W.C. Jones | Gearing | |
| 437,067 | Sep. 23, 1890 | L.E. Whiton | Speed Changing Mechanism for Lathes | metalworking speed changing mechanisms |
| 502,446 | Aug. 01, 1893 | A. Tucker, H.E. Nottingham | Friction Clutch | industrial machine clutches |
| 626,445 | Jun. 06, 1899 | H. Smith | Variable Speed Gearing | industrial machine speed and direction changing mechanisms |
| 628,469 | Jul. 11, 1899 | T. Humpage | Gearing | metalworking machine gearing |
| 797,001 | Aug. 15, 1905 | F.H. Heitger | Speed-Changing Gear | industrial machine speed and direction changing mechanisms |
| 2,141,209 | Dec. 27, 1938 | G.W. Emrick | Tapping attachment | tapping heads and chucks |
| 2,162,251 | Jun. 13, 1939 | G.W. Emrick | Tapping attachment | tapping heads and chucks |
