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| Patents for Charles W. Sleeper | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-20,722 | Dec. 13, 1884 | C.W. Sleeper | Attachment for planing machines | wood planers | |
| 393,036 | Nov. 20, 1888 | C.W. Sleeper, W. Sleeper | Punching and Shearing Machine | metal punching machines | |
| 400,801 | Apr. 02, 1889 | R.M. Woodard, C.W. Sleeper | Saw-guide | circular saw accessories | |