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| Patents for Mary M. Magraw | |||||
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| Number | Date | Patentee | Title | Type | |
| 817,991 | Apr. 17, 1906 | T.S. Ross | Bevel Square | ||
| 818,051 | Apr. 17, 1906 | T.S. Ross | Bevel-square rule | ||
| 842,585 | Jan. 29, 1907 | T.S. Ross | Drafting Attachment | ||