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| Patents for William H. Niemeyer | |||||
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| Picture | Number | Date | Patentee | Title | |
| 764,492 | Jul. 05, 1904 | W.H. Niemeyer, E.J. Godman | Excelsior machine | ||
| 805,149 | Nov. 21, 1905 | W.H. Niemeyer | Excelsior-cutting machine | ||
| 823,432 | Jun. 12, 1906 | W.H. Niemeyer | Excelsior machine | ||
 | CA-103,907 | Mar. 05, 1907 | W.H. Niemeyer | Excelsior cutting machine | |