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