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| All Patents in class 254/346 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 301,281 | Jul. 01, 1884 | C.G. Ross | Hoisting-machine | |
| 320,743 | Jun. 23, 1885 | A.C. Ames | Traction Engine | ||
| 850,835 | Apr. 16, 1907 | J.E. Howland | Attachment for Traction Engines | ||
 | 1,650,936 | Nov. 29, 1927 | M.B. McLauthlin, J.W. Dodd | Elevator hoist | |