| All Patents in class 279/61 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 66,081 | Jun. 25, 1867 | W.H. Haight, G.W. Harris | Improvement in Chucks | |
| 146,143 | Jan. 06, 1874 | H.M. Olmsted | Improvement in drill-chucks | drill chucks |
| 226,370 | Apr. 06, 1880 | A.L. Sweet | Drill Chuck | metal lathe chucks |
| 318,466 | May 26, 1885 | S.P. Graham | Drill Chuck | drill press chucks |
| 323,179 | Jul. 28, 1885 | W. Mason | Drill Chuck | drill press chucks |
| 323,181 | Jul. 28, 1885 | W. Mason | Drill Chuck | drill press chucks |
| 549,837 | Nov. 12, 1895 | D. Weir | Drill-chuck | drill press chucks |
| 553,531 | Jan. 28, 1896 | G.S. Long | Drill-chuck | drill press chucks |
| 562,421 | Jun. 23, 1896 | F.H. Richards | Chuck | drill press chucks |
| 813,864 | Feb. 27, 1906 | H.L. Coit | Ball-bearing drill chuck | drill press chucks |
| 879,741 | Feb. 18, 1908 | H.L. Coit | Ball-bearing drill chuck | drill press chucks |
| 933,179 | Sep. 07, 1909 | A.I. Jacobs | Chuck | |
| 3,044,790 | Jul. 17, 1962 | A.M. Stoner | Chuck and operating key with enlarged pilot | drill chucks |
