| All Patents in class 475/298 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 91,929 | Jun. 29, 1869 | A. Gauntt | Reducing Rotary Motion |
| | 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 |
| | 502,446 | Aug. 01, 1893 | A. Tucker, H.E. Nottingham | Friction Clutch |
| | 626,445 | Jun. 06, 1899 | H. Smith | Variable Speed Gearing |
| | 628,469 | Jul. 11, 1899 | T. Humpage | Gearing |
 | 797,001 | Aug. 15, 1905 | F.H. Heitger | Speed-Changing Gear |
| | 809,915 | Jan. 09, 1906 | C.R. Gabriel | Gearing |
| | 2,141,209 | Dec. 27, 1938 | G.W. Emrick | Tapping attachment |
| | 2,162,251 | Jun. 13, 1939 | G.W. Emrick | Tapping attachment |
