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| Patents for B. D. Stevens | |||||
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| Number | Date | Patentee | Title | Type | |
| 396,109 | Jan. 15, 1889 | C.G. Osteman | Surface Gage | surface gauges | |
| 879,501 | Feb. 18, 1908 | A. Thorsby | Knife-holder for cutter-heads | cutterheads | |