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| Patents for Frank H. Pierpont | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 349,496 | Sep. 21, 1886 | R. Hayden | Wire Cutter | |
| 352,004 | Nov. 02, 1886 | F.H. Richards | Saw | ||
| 515,175 | Feb. 20, 1894 | F.H. Pierpont, L.T. Snow | Reducing Mechanism for Steam Engine Indicator | ||
| 679,779 | Aug. 06, 1901 | F.H. Pierpont | Micrometer | ||