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| Patents for Edgar C. Merrill | |||||
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| Number | Date | Patentee | Title | Type | |
| 95,824 | Oct. 12, 1869 | E.C. Merrill, A.W. Willard | Improved composition for emery-wheels and other abrading-implements | grinding wheels | |
| 113,439 | Apr. 04, 1871 | E.C. Merrill | Improvement in the manufacture of emery-wheels and artificial stone | grinding wheels | |