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| Patents for Bay City Iron Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 187,622 | Feb. 20, 1877 | C.M. Hall | Improvement in set-works for circular-saw mills | sawmill set works | |
| 1,144,459 | Jun. 29, 1915 | F.V. Burman | Angle-iron-bending machine | metal bending machines | |