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| Patents for E. A. Marsh | |||||
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| Number | Date | Patentee | Title | Type | |
| 171,082 | Dec. 14, 1875 | G.F. Ballou | Chuck and Centerer | metal lathe chucks | |
| 339,194 | Apr. 06, 1886 | M. Lafever | Traction Engine | traction engine suspensions | |
| 486,609 | Nov. 22, 1892 | D.H. Church | Uprighting Lathe | watchmakers lathes | |
| 489,048 | Jan. 03, 1893 | L.A. Barber, F.L. Twiss | Pipe Wrench | chain and strap wrenches | |
| 845,272 | Feb. 26, 1907 | C.A. Shaler | Vulcanizer | rubber tire repair tools | |