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Patents for H. R. Hegeman | |||||
Number | Date | Patentee | Title | Type | |
247,723 | Sep. 27, 1881 | H.H. Westinghouse, S. Moore, J. Westinghouse | Traction Engine | steam traction engines | |
259,955 | Jun. 20, 1882 | W. Webber, J. Westinghouse | Thrashing-machine | threshers and thrashers |