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Patents for Bernard J. Hausfeld | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 513,683 | Jan. 30, 1894 | F. Holz | Milling Machine | |
![]() | 554,423 | Feb. 11, 1896 | F. Holz | Milling Machine | |
![]() | 582,341 | May 11, 1897 | P.H. Campbell | Wrench |