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| Patents for Eugen Zerver | |||||
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| Number | Date | Patentee | Title | Type | |
| DE-1,655,077 | May 07, 1953 | E. Zerver | Zange mit Haftsitz | locking pliers | |
| DE-1,723,496 | May 30, 1956 | E. Zerver | Steckschlüssel | socket wrenches | |