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| Patents for Charles Ernest Harper | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-102,366 | Dec. 04, 1906 | C.E. Harper | Wood planing machinery | wood planers | |
| 854,642 | May 21, 1907 | C.E. Harper | Feed-roll for wood-planing machines | wood planers | |