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| Patents for Harvey L. Hanson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 713,511 | Nov. 11, 1902 | E.H. Sheldon | Jointing device | |
 | 766,245 | Aug. 02, 1904 | F. Hardinge | Automatic gear cutting machine | |
 | 894,634 | Jul. 28, 1908 | F. Hardinge | Lathe | |
 | 894,635 | Jul. 28, 1908 | F. Hardinge | Lathe | |