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| Patents for John W. Hubbard | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 557 | Jan. 09, 1838 | J. MacGregor, Jr. | Planing-machine | |
 | 943 | Sep. 25, 1838 | T.J. Flanders | Machine for sawing shingles and clapboards | |
 | 973 | Oct. 08, 1838 | R. Grant | Grant's annular saw | |