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| Patents for John E. Prosperi | |||||
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| Number | Date | Patentee | Title | Type | |
| 331,653 | Dec. 01, 1885 | J.N. Richey | Portable saw-mill | circular sawmills | |
| 334,285 | Jan. 12, 1886 | T.J. Reamy | Feed mechanism for sawmills | sawmill feed works | |