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All Patents in class 280/510 | |||||
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Picture | Number | Date | Patentee | Title | |
816,218 | Mar. 27, 1906 | H.C. Clay | Coupling | ||
1,136,564 | Apr. 20, 1915 | M.J. Todd | Vehicle Coupling | ||
1,938,407 | Dec. 05, 1933 | F.G. Ricker, J.F. Thomas | Automatic coupler |