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| Patents for M. G. Hubbard | |||||
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| Number | Date | Patentee | Title | Type | |
| 12,162 | Jan. 02, 1855 | M.G. Hubbard | Mode of hanging the knife in planing-machines | wood planers | |
| 13,174 | Jul. 03, 1855 | M.G. Hubbard | Method of hanging plane-stocks and their mouthpieces | wood planers | |