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| Patents for Rudolph Wm. Lotz | |||||
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| Number | Date | Patentee | Title | Type | |
| 651,306 | Jun. 05, 1900 | C. Gabriel | Stay Bolt Wrench | wrenches | |
| 795,456 | Jul. 25, 1905 | F.W. Stanton | Wrench | axle nut wrenches that lock nut to wheel hub | |