US Patent: 146,697
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| Improvement in Steam-Lubricators
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Patentee:
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| Elijah McCoy (exact or similar names) - Ypsilanti, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 11, 1873 |
| Granted: |
Jan. 20, 1874 |
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Joel Havens
Wikipedia biography of Elijah McCoy
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Description: |
| The inventor was born in Canada to fugitive slaves from Kentucky. He moved to Scotland where he was certified as a mechanical engineer, and then rejoined his family who in the meantime had moved to Michigan. |
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