| All Patents in class 475/270 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 66,229 | Jul. 02, 1867 | J. Fanning | Drilling apparatus | eggbeater drills |
| 286,840 | Oct. 16, 1883 | G.C. Paine | Bit-stock | |
| 506,931 | Oct. 17, 1893 | W.P. Nolan | Ratchet-drill brace | ratchet braces |
| 531,382 | Dec. 25, 1894 | F.C. McClary | Reversing Tap Holder | tap and die holders |
| 810,444 | Jan. 23, 1906 | C.W. Theil | Electric drill | handheld power tools |
| 919,156 | Apr. 20, 1909 | C.B. Gilmore | Bit-stock | |
| 1,109,325 | Sep. 01, 1914 | W.O. Duntley | Electric drill | handheld power drills |
| 1,799,393 | Apr. 07, 1931 | A.E. Rylander | Variable-Speed Brace Drill | braces |
| 1,834,716 | Dec. 01, 1931 | J. Kis | Universal Machine Head | milling machine accessories |
| 2,780,944 | Feb. 12, 1957 | E.J. Ondeck | Reversible drive for power tools | handheld power tool accessories |
| 2,839,952 | Jun. 24, 1958 | E.J. Ondeck | Reversible Power Tool Drive Attachment | handheld power tool accessories |
