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| Patents for George A. Marshall | |||||
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| Number | Date | Patentee | Title | Type | |
| 805,013 | Nov. 21, 1905 | C. Hanimann | Swivel-bottom bench vise | bench vises | |
| 816,162 | Mar. 27, 1906 | C. Hanimann | Quick-release bench vise | bench vises | |