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| Patents for Ernst Hammesfahr | |||||
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| Number | Date | Patentee | Title | Type | |
| 409,836 | Aug. 27, 1889 | E. Hammesfahr | Drop Hammer | drop hammers | |
| 610,530 | Sep. 13, 1898 | E. Hammesfahr | Pocket-corkscrew | corkscrew knives | |