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| Patents for Charles H. Seem | |||||
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| Number | Date | Patentee | Title | Type | |
| 832,054 | Oct. 02, 1906 | E.N. Gilfillan | Pencil-sharpener | pencil sharpeners | |
| 865,519 | Sep. 10, 1907 | W.H. Oliver | Wrench or Nut Jack | axle nut wrenches | |
| 917,789 | Apr. 13, 1909 | W.H. Oliver | Lifting-jack | automobile and truck jacks | |