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| All Patents in class 72/161 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,310,916 | Feb. 09, 1943 | W.A. Ehlert, F.W. Gaines, III | Apparatus for Drawing and Straightening Wire Stock | wire drawing machines | |
| 3,183,699 | May 18, 1965 | W.A. Ehlert | Wire Drawing Apparatus | wire drawing machines | |