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