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| Patents for Charles J. Colling | |||||
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| Number | Date | Patentee | Title | Type | |
| 475,299 | May 24, 1892 | C.J. Colling | Machine for bending sheet metal | metal bending machines | |
| 558,673 | Apr. 21, 1896 | C.J. Colling | Machine for Making Curved Molding and Embossing | ||