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| All Patents in class 242/413.8 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,643,827 | Jun. 30, 1953 | W.H. Franzmann | Winding apparatus | ||
| 3,977,621 | Aug. 31, 1976 | H.W. Huffman | Differential driven rewinder-unwinder | ||