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| Patents for Z. L. Davis | |||||
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| Number | Date | Patentee | Title | Type | |
| 70,440 | Nov. 05, 1867 | S. Andrews, F. Kali | Boot Crimp | cobbler | |
| 210,553 | Dec. 03, 1878 | A.J. Palmer | Brace for cutting leather washers | braces | |
| 354,359 | Dec. 14, 1886 | J.C. Spencer | Handle for screw-drivers and other tools | spiral screwdrivers | |