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| Patents for Edward A. Marsh | |||||
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| Number | Date | Patentee | Title | Type | |
| 329,181 | Oct. 27, 1885 | E.A. Marsh | Micrometer Gage | micrometers | |
| 839,943 | Jan. 01, 1907 | E.A. Marsh | Micrometer Gage | dial indicator gauges | |