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| Patents for Robert D. Grier | |||||
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| Number | Date | Patentee | Title | Type | |
| 147,389 | Feb. 10, 1874 | G.S. Grier | Improvement in sawing-machines | reciprocating saws | |
| 147,390 | Feb. 10, 1874 | G.S. Grier | Improvement in sawing-machines | reciprocating saws | |