| All Patents of Type: drill press chucks |
Patents 1 -
15
of 70
      |
| Number | Date | Patentee | Title | Type |
| 134,259 | Dec. 24, 1872 | A.F. Cushman | Improvement in chucks for holding drills | drill press chucks |
| 144,128 | Oct. 28, 1873 | L. Parmelee | Improvement in chucks | drill chucks |
| 184,445 | Nov. 14, 1876 | S.N. Trump, C.N. Trump | Collet chuck | drill press chucks |
| 226,246 | Apr. 06, 1880 | C.H. Reid | Lathe-chuck | wood lathe chucks |
| 279,017 | Jun. 05, 1883 | C.H. Reid | Lathe-chuck | wood lathe chucks |
| 315,684 | Apr. 14, 1885 | J.H. Westcott | Drill-Chuck | drill press chucks |
| 317,148 | May 05, 1885 | A.B. Landis | Drill-chuck | drill press chucks |
| 323,178 | Jul. 28, 1885 | W. Mason | Drill-chuck | drill press chucks |
| 339,544 | Apr. 06, 1886 | S.P. Graham | Combined boring-tool and holder | metalworking twist drills |
| CA-24,874 | Sep. 03, 1886 | S.P. Graham | Combined drill and bit shank and holder | metalworking twist drills |
| 434,460 | Aug. 19, 1890 | C.T. Pratt | Drill-chuck | drill press chucks |
| 454,074 | Jun. 16, 1891 | J.N. Skinner | Drill-chuck | drill press chucks |
| 455,490 | Jul. 07, 1891 | C.T. Pratt | Drill-chuck | drill press chucks |
| 455,689 | Jul. 07, 1891 | C.T. Pratt | Drill-chuck | drill press chucks |
| 473,639 | Apr. 26, 1892 | C.T. Pratt | Sleeve for taper drills | drill press chucks |
