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| All Patents in class 254/409 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,709 | Feb. 03, 1852 | S.G. Coleman, W. Coleman | Ship's Block | tackle blocks | |
| 47,878 | May 23, 1865 | J.A. Talpey | Improvement in hoisting apparatus | hoists, winches, come-alongs | |
| 79,653 | Jul. 07, 1868 | J.E. Gustin | Block and Tackle | block and tackles | |
| 1,392,957 | Oct. 11, 1921 | F.E. Matthews | Pulley and sheath therefor | ||