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| All Patents in class 72/92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 939,061 | Nov. 02, 1909 | A.L. Mowry | Machine for manufacturing grooved pins, &c. | ||
| 1,040,485 | Oct. 08, 1912 | A.H. Adams | Thread-rolling machine | ||