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| All Patents of Type: pulley blocks and tackles | |||||
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| Number | Date | Patentee | Title | Type | |
| 115,450 | May 30, 1871 | E. Doty | Improvement in tackle-blocks | pulley blocks and tackles | |
| GB-189,423,976 | Oct. 12, 1895 | C. Gibson, F. Lightbourne | Improvements in Pulley Blocks and like Lifting Machines or Appliances | pulley blocks and tackles | |