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| Patents for R. C. Usher | |||||
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| Number | Date | Patentee | Title | Type | |
| 160,904 | Mar. 16, 1875 | G.S. Hastings | Improvement in Measuring Rules | folding rules | |
| 304,064 | Aug. 26, 1884 | O.A. Basset | Clapboarding Tool | clapboard markers | |