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| All Patents in class 305/40 | |||||
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| Number | Date | Patentee | Title | Type | |
| 122,850 | Jan. 16, 1872 | R.C. Parvin | Improvements in Land Carriages | traction engine tracks | |
| 680,918 | Aug. 20, 1901 | J.E. Henris | Traction Engine | traction engine tracks | |