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| Patents for Walter Chamberlin | |||||
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| Number | Date | Patentee | Title | Type | |
| 314,448 | Mar. 24, 1885 | C. Hoff | Sheet Metal Seaming Machine | roller seaming machines | |
| 315,049 | Apr. 07, 1885 | T. McFarlan, H.E. Nottingham | Drilling-machine | drill presses | |