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| Patents for Henry D. Heiser | |||||
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| Number | Date | Patentee | Title | Type | |
| 126,634 | May 14, 1872 | H.D. Heiser, H.F. Snyder, G.S. Snyder | Improvement in machines for heading pickets | stick pointing machines | |
| 301,984 | Jul. 15, 1884 | H.D. Heiser | Wood-boring machine | multiple spindle drill presses | |