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| Patents Granted on 1881-10-24 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-13,593 | Oct. 24, 1881 | A.L. Teetor | Perfectionnements aux Machines á Rhabiller Meules | mill stone dressers | |
| 248,609 | Oct. 24, 1881 | J. Powell | Lubricator | steam engine lubricators | |