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| Patents for Louis Robert Victor Schwarzkopff | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-186,300,945 | Apr. 21, 1863 | L.R. Schwarzkopff, W.E. Newton | Spanners and Wrenches; Combination Tools | self-adjust wrenches | |
| 42,903 | May 24, 1864 | E. Kaselowsky, L.R. Schwarzkopff | Wrench | self-adjust wrenches | |