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| All Patents in class 279/47 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 871,005 | Nov. 12, 1907 | A. Tindel | Chuck mechanism | |
| 1,570,251 | Jan. 19, 1926 | F.O. Hoagland | Collet and collet mechanism | ||
 | 2,508,731 | May 23, 1950 | A.M. Stoner | Lathe chuck | |