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| All Patents in class 413/31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 787,549 | Apr. 18, 1905 | E. Zeh | Double-seaming machine | sheet metal | |
| 3,030,900 | Apr. 24, 1962 | G.E. Munschauer, L.S. Platou | Hydraulic seamer | sheet metal | |