| All Patents in class 279/69 |
Patents 1 -
10
of 32
      |
| Picture | Number | Date | Patentee | Title |
 | 44,067 | Sep. 06, 1864 | E.B. Beach | Improved self-centering chuck |
 | RE2,104 | Nov. 14, 1865 | E.B. Beach | Self-centering chuck |
 | 54,760 | May 15, 1866 | L.H. Olmsted | Improvement in chucks |
 | 90,338 | May 25, 1869 | G.E. Brettell | Chuck |
 | 146,262 | Jan. 06, 1874 | W.H. McKoy | Improvement in Chucks |
 | 194,122 | Aug. 14, 1877 | H.B. Beach | Improvement in drill-chucks |
 | 206,320 | Jul. 23, 1878 | G.W. Hayden | Means of keeping the jaws in alignment |
 | 210,075 | Nov. 19, 1878 | C.H. Amidon | Improvement in bit-braces |
 | 274,135 | Mar. 20, 1883 | C. Morrill | A single coaxial spring uges the jaws apart to receive the bit. |
| | 310,060 | Dec. 30, 1884 | H. Johnson | Lathe Chuck |
