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| Patents for W. P. Harris | |||||
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| Number | Date | Patentee | Title | Type | |
| 39,035 | Jun. 30, 1863 | L.S. Colburn | Improvement in churns | ||
| 482,232 | Sep. 06, 1892 | C.W. Delaney | watchmaker's tweezers | watchmaker | |