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| Patents for Frontier Iron Works | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-49,853 | Sep. 04, 1895 | J.C. Ballew | Saw filing machine | saw sharpening machines | |
| 1,032,430 | Jul. 16, 1912 | W. Robertson | Drill-press | drill presses | |