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| All Patents in class 104/103 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 272,431 | Feb. 20, 1883 | E. Harrington | Hoisting-machine | |
 | 301,119 | Jul. 01, 1884 | J. Sprogell, H.S. Haskins | Overhead railway | |
 | 954,275 | Apr. 05, 1910 | J.C. Fitzgerald | Elevated track for carriers | |
 | 961,433 | Jun. 14, 1910 | J.C. Fitzgerald | Overhead switch | |
 | 967,869 | Aug. 16, 1910 | J.C. Fitzgerald | Overhead switch | |