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| All Patents in class 57/27 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,467,539 | Sep. 11, 1923 | A.J. Draper | Strand twister | rope maker | |
| 1,490,395 | Apr. 15, 1924 | J. Maynard | Rope making machine | rope maker | |
| 1,510,691 | Oct. 07, 1924 | M. Meyer | Rope making machine | rope maker | |
| 1,652,111 | Dec. 06, 1927 | W.H. Gullungton | Rope making machine | rope maker | |
| 2,270,237 | Jan. 20, 1942 | J.M. Cattoor | Rope machine | rope maker | |