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| All Patents in class 144/256.4 | |||||
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| Number | Date | Patentee | Title | Type | |
| 501,697 | Jul. 18, 1893 | C. Sommer | Stave-bending machine | cooper | |
| 597,452 | Jan. 18, 1898 | N.B. Zuccarello | Wood-bending machine | wood bending machines | |
| 2,312,332 | Mar. 02, 1943 | C.U. Gramelspacher | Veneer molding process | veneer machines | |