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| Patents for John B. Ritchey | |||||
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| Number | Date | Patentee | Title | Type | |
| 114,859 | May 16, 1871 | J.B. Ritchey | Improvement in dovetailing-machines | dovetailing machines | |
| 117,332 | Jul. 25, 1871 | J.B. Ritchey | Improvement in dovetailing-machines | dovetailing machines | |