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| Patents for H. F. Willson | |||||
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| Number | Date | Patentee | Title | Type | |
| 93,710 | Aug. 17, 1869 | G.V. Griffith | Improvement in machine for forming plow-handles | specialty woodworking machines | |
| 115,752 | Jun. 06, 1871 | H. Markle | Improvement in miter-boxes | miter boxes | |
| 230,640 | Aug. 03, 1880 | W.W. Massey | Folding and Extension Measuring Rod | folding rules | |