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| All Patents in class 114/200 | |||||
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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 | |
| 4,862,821 | Sep. 05, 1989 | R. Ballantyne | Mechanism for tensioning a moving chain | boats and ships | |