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| Patents for Henry R. Mathias | |||||
| Number | Date | Patentee | Title | Type | |
| 267,010 | Nov. 07, 1882 | H.R. Mathias | Excelsior-machine | excelsior machines | |
| 376,671 | Jan. 17, 1888 | H.R. Mathias | Slideway | woodworking machine material handling | |