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| All Patents in class 254/394 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 411,165 | Sep. 17, 1889 | O.H. Noack | Hoisting-gear | |
| 1,345,881 | Jul. 06, 1920 | J.A. Butterworth, W.H. Purnell | Portable Jib Crane | ||