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| All Patents in class 280/47.15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,125,227 | Jan. 19, 1915 | I.A. Weaver | Tow bar for automobiles | vehicle mechanic | |
| 1,308,537 | Jul. 01, 1919 | I.A. Weaver | Towing device | vehicle mechanic | |