US Patent: 503,038
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Regulation of alternating-current motors
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Patentee:
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Michael von Dolivo-Dobrowolsky (exact or similar names) - Berlin, Germany |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 23, 1890 |
Granted: |
Aug. 08, 1893 |
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Jeff Joslin
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Description: |
This patent is equivalent to French patent FR-210,221, British patent GB-189,120,425, and others; see the patent specification for a complete list. |
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