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| Patents for Cowan & Co., Ltd. | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-49,432 | Jul. 09, 1895 | I.E. Eby | Matching head for planing machines | cutterheads | |
| CA-59,691 | Apr. 12, 1898 | W. Clark | Saw-setting machine | saw sharpening machines | |
| 615,964 | Dec. 13, 1898 | W. Clark | Saw-setting machine | saw sharpening machines | |
| CA-170,769 | Jul. 11, 1916 | R. Richardson | Hoop machine | hoop making machines | |
| CA-196,083 | Jan. 13, 1920 | R. Richardson | Hoop forming machine | hoop making machines | |