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| Patents for Carlos V. Mason | |||||
| Number | Date | Patentee | Title | Type | |
| 272,685 | Feb. 20, 1883 | H.C. Hart | Belt-fastener | belts, belt lacing and belt lacers | |
| 756,068 | Mar. 29, 1904 | C.B. Simmons | Draw-Knife | draw knives | |