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| All Patents in class 29/896.9 | |||||
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| Number | Date | Patentee | Title | Type | |
| 283,557 | Aug. 21, 1883 | F.P. Barney | Process of and Apparatus for Manufacturing Continuous Lengths of Coiled Wire | wire drawing machines | |
| 458,115 | Aug. 18, 1891 | E. Thomson | Method of Electric Bending and Straightening | metal bending machines | |
| 3,145,759 | Aug. 25, 1964 | A.D. Swartz, H.A. Doster, C. Zelnick | Apparatus for making power springs | ||