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| Patents for Charles F. Leopold | |||||
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| Number | Date | Patentee | Title | Type | |
| 371,268 | Oct. 11, 1887 | C.F. Leopold | Saw set | saw sets | |
| 433,947 | Aug. 12, 1890 | C.F. Leopold | Saw Set | saw sets | |
| 451,494 | May 05, 1891 | C.F. Leopold | Saw set | saw sets | |