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| Patents for George W. Haag | |||||
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| Number | Date | Patentee | Title | Type | |
| 444,309 | Jan. 06, 1891 | G.F. Welivar | Driving-gear for planers | metal planers | |
| 691,191 | Jan. 14, 1902 | E.S. Shimer | Expansible cutter-head | cutterheads | |