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| Patents for John R. Chapin | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,455 | Apr. 11, 1846 | W. Kumbel | Stretching leather bands | belts, belt lacing and belt lacers | |
| 6,281 | Apr. 10, 1849 | W. Hunt | Safety pin | sewing tools | |