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| All Patents in class 279/37 | |||||
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| Number | Date | Patentee | Title | Type | |
| 899,203 | Sep. 22, 1908 | F.E. Carlson | Bit Extension | drill bit extensions | |
| 966,105 | Aug. 02, 1910 | J.P. Lavigne | Automatic die-head | taps and dies | |
| 1,191,797 | Jul. 18, 1916 | E.H. Knowlton | Tool Holder | drilling and boring tool holders | |
| 3,466,971 | Sep. 16, 1969 | H.F. Meyer | Tool holder | tool changers and storage mechanisms | |
| 3,533,638 | Oct. 13, 1970 | R.K. Sedgwick | Tool Locking Mechanism | metalworking machine mechanisms | |