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| Patents for Michigan Iron Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 105,540 | Jul. 19, 1870 | J.E. Austin | Improvement in shingle-machines | shingle machines | |
| 347,331 | Aug. 17, 1886 | E. Densmore | Machine for cutting veneers | veneer machines | |
| 431,139 | Jul. 01, 1890 | W. Curtiss | Machine for dressing the teeth of gear-wheels | gear making machines | |
| 446,585 | Feb. 17, 1891 | E. Densmore | Veneer-cutting machine | ||