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| All Patents in class 301/68 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,411,391 | Apr. 04, 1922 | J.D. Tucker | Spoke Tightener | wheelwright | |
| 1,424,530 | Aug. 01, 1922 | J.D. Tucker, E.M. Tucker | Spoke Tightener | wheelwright | |