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| Patents for Henry William Dopp, deceased (Estate of) | |||||
| Number | Date | Patentee | Title | Type | |
| 414,687 | Nov. 12, 1889 | H.W. Dopp, deceased (Estate of), M.J. Stark, Executor, W.H. Dopp, Executor, II | Steam Stamping Press | steam hammers | |