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| Patents for H. E. Prindle | |||||
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| Number | Date | Patentee | Title | Type | |
| RE6,461 | May 25, 1875 | J.J. Ralya | Improvement in stave-jointers | cooper | |
| RE6,462 | May 25, 1875 | J.J. Ralya | Improvement in Plane-Irons | cooper | |