US Patent: 551,371
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| Means for operating and regulating speed of electric motors
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Patentee:
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| Rudolf Eickemeyer (exact or similar names) - Yonkers, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 31, 1892 |
| Granted: |
Dec. 17, 1895 |
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Jeff Joslin
Vintage Machinery entry for Osterheld & Eickemeyer
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Description: |
| The inventor was deceased by the time the patent was issued. The patent has improvements to patent 376,740. |
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