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| Patents for Engelbert Arnold | |||||
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| Number | Date | Patentee | Title | Type | |
| 543,836 | Aug. 06, 1895 | E. Arnold | Alternating-current motor | electric motors | |
| 562,365 | Jun. 23, 1896 | E. Arnold | Alternating-current motor | electric motors | |
| 562,366 | Jun. 23, 1896 | E. Arnold | Electric motor and dynamo | electric motors | |