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| All Patents of Type: drill holders | |||||
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| Number | Date | Patentee | Title | Type | |
| 78,251 | May 26, 1868 | T.K. Bacon | Drill Holder | drill holders | |
| 1,025,255 | May 07, 1912 | C.H. Driver | Combined tool rack and gage | drill holders | |
| 2,526,732 | Oct. 24, 1950 | S.A. Cogsdill | Container for Holding a Set of Drills and Punch | drill holders | |
| 3,827,820 | Aug. 06, 1974 | J.T. Hoffman | Drill Bit Index | drill accessories | |