US Patent: 511,570
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| Rotary electro-magnetic engine
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Patentee:
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| Henry Parker White (exact or similar names) - Kalamazoo, MI |
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Patent Dates:
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| Applied: |
Feb. 15, 1893 |
| Granted: |
Dec. 26, 1893 |
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Patent Pictures:
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1 | 2
]
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Jeff Joslin
Vintage Machinery entry for United States Electrical Tool Co.
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Description: |
| A bench grinder from United States Electrical Tool Co. says, "Rotor made by owners of patent Dec. 26 1893". We have not been able to determine who actually made the rotor. The inventor changed employers several times during the 1890s. |
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