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| All Patents in class 172/554 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,602X | Apr. 21, 1836 | J.C. Concklin | Harrow | harrows | |
| 26,691 | Jan. 03, 1860 | J.H. Masker | Machine for turning hat-blocks | wood lathes | |