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| Patents for Charles S. Harmon | |||||
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| Number | Date | Patentee | Title | Type | |
| 245,634 | Aug. 16, 1881 | T.J. Jenne, C.S. Harmon | Lifting-jack | lifting jacks | |
| 254,823 | Mar. 14, 1882 | T.J. Jenne, C.S. Harmon | Lifting-jack | lifting jacks | |