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| Patents for Franklin L. Downend | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-31,851 | Aug. 01, 1889 | J.O. Hibbard, C.F. Mott, F.L. Downend | Combination Tool | combination cork extractors | |
| 426,409 | Apr. 22, 1890 | F.L. Downend | Combination Tool | combination tools | |