| All Patents in class 279/120 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 164,032 | Jun. 01, 1875 | G.M. Pratt | Chucks for Metal Drills | drill press chucks |
| RE8,793 | Jul. 08, 1879 | G.M. Pratt | Chuck for Metal Drills | drill press chucks |
| 385,474 | Jul. 03, 1888 | F. Müller | Lathe Chuck | metal lathe chucks |
| 566,725 | Aug. 25, 1896 | T.E. Cherry | Chuck | metal lathe chucks |
| 737,204 | Aug. 25, 1903 | E.W. Bullard | Screw Cutting Device | metal lathe accessories and attachments |
| 961,867 | Jun. 21, 1910 | P.F. Krug | Chuck | metal lathe chucks |
| 1,075,756 | Oct. 14, 1913 | W.L. Bryand | Chuck | grinders |
