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| Patents for W. J. Pratt | |||||
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| Number | Date | Patentee | Title | Type | |
| 183,825 | Oct. 31, 1876 | B.F. Sturtevant | Portable Steam Fan | ||
| 196,998 | Nov. 13, 1877 | B.F. Sturtevant | Fan Blowers | blowers | |
| RE7,969 | Nov. 27, 1877 | E.T. Green | Improvement in Machines for Pegging Boots and Shoes | shoe and boot making machines | |
| 199,568 | Jan. 22, 1878 | P.F. Peters | Improvement in Lasting Hammers | hammers | |