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| All Patents in class 279/19 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 945,735 | Jan. 04, 1910 | M. Hartsocg | Bit-chuck and bit | ||
| 1,262,960 | Apr. 16, 1918 | A.V. Lea | Drill Bit Puller | ||
 | 1,485,010 | Feb. 26, 1924 | J.M. Crowe, J.E. Ash | Tool holder for pneumatic hammers | |
| 1,787,932 | Jan. 06, 1931 | A.F. Breitenstein | Floating Tool Holder | ||
| 2,043,442 | Jun. 09, 1936 | J.E. McNeil | Tool Holder | ||
 | 3,010,730 | Nov. 28, 1961 | G.H. Fuehrer | Coupling with lock | |