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| Patents for Henry D. Edgcomb | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,870 | Apr. 13, 1852 | R. Crosby, H.D. Edgcomb | Machine for tonguing boards | matchers | |
| RE221 | Jul. 13, 1852 | H.D. Edgcomb, R. Crosby | Matcher | wood planers | |