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| All Patents in class 180/247 | |||||
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| Number | Date | Patentee | Title | Type | |
| 16,919 | Mar. 31, 1857 | J.S. Hall | Steam Carriage | steam carriages | |
| 2,350,037 | May 30, 1944 | P.P. Dubosclard, C.E. Harrington, R.W. Hofheins, C.D. Thomas | Amphibian vehicle | motor vehicles | |