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| All Patents in class 279/149 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,647,396 | Nov. 01, 1927 | A.G. Decker | Rotary tool with key pocket | drill chucks | |
| 1,798,234 | Mar. 31, 1931 | H.M. Toppin | Key holder for tools | handheld power tool accessories | |
| 1,821,436 | Sep. 01, 1931 | J.J. Holloway | Portable power driven tool | handheld power drills | |
| 4,477,213 | Oct. 16, 1984 | S.R. Wente, J.W. Nelson | Chuck Key Holder for Power Tool | ||
| 5,332,240 | Jul. 26, 1994 | P. Bedoian | Drill Chuck Key Tool | drill press chucks | |