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| Patents for Chas. I. Humphrey | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 119,967 | Oct. 17, 1871 | W. Clemson | Improvement in Backsaws | |
 | 130,980 | Sep. 03, 1872 | W. Clemson | Improvement in Handles for Crosscut Saws | |
 | 155,100 | Sep. 15, 1874 | W. Millspaugh | Improvement in Pruning Implements | |
 | 156,369 | Oct. 27, 1874 | W. Millspaugh | Improvement in Saw Handles | |
 | 183,805 | Oct. 31, 1876 | J. Holden | Improvement in Methods of Attaching Saws to Handles | |