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| All Patents in class 279/143 | |||||
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| Number | Date | Patentee | Title | Type | |
| 529,401 | Nov. 20, 1894 | H. Pratt, W.H. McCoy | Spiral screw driver and drill | spiral screwdrivers | |
| 935,977 | Oct. 05, 1909 | H.W. Haskell | Tool Holder | tool holders | |
| 2,709,600 | May 31, 1955 | J.W. Lehde | Lock and Ejector Collets | tool holding collets | |
| 4,238,167 | Dec. 09, 1980 | J.J. Hughes, D.M. Brugger | Toolholder Adapter | metalworking machine tool holders | |