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| Patents for H. C. Hansen | |||||
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| Number | Date | Patentee | Title | Type | |
| 718,837 | Jan. 20, 1903 | H.C. Hansen | Machine for Mitering Printer's Rules | ||
| CA-82,188 | Jul. 28, 1903 | H.C. Hansen | Machine for mitering printer's rules | printer | |