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| Patents for Edward M. Madden | |||||
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| Number | Date | Patentee | Title | Type | |
| 29,671 | Aug. 21, 1860 | W. Clemson | Tempering Saws | making sawblades | |
| 101,229 | Mar. 29, 1870 | W. Clemson | Improvement in Saw Gauges | saw gauges | |
| RE4,096 | Aug. 09, 1870 | J.H. Tuttle | Improvement in Saws | crosscut saws | |
| 116,269 | Jun. 27, 1871 | W. Clemson | Improvement in Saw Frames | frame saws | |