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| Patents for Robert Snodgrass | |||||
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| Number | Date | Patentee | Title | Type | |
| 86,597 | Feb. 02, 1869 | W.H. Sible | Wrench | quick adjust wrenches | |
| 87,715 | Mar. 09, 1869 | W.H. Sible | Improvement in bit-stock | brace chucks | |