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| Patents for Charles Ward Cotton | |||||
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| Picture | Number | Date | Patentee | Title | |
| 439,053 | Oct. 21, 1890 | C.W. Cotton, J.T. Gardner, A.W. Margedant | Spoke-facing machines | ||
| 441,286 | Nov. 25, 1890 | C.W. Cotton | Spoke-making method | ||