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US Patent: 146,697
Improvement in Steam-Lubricators
Patentee:
Elijah McCoy - Ypsilanti, MI

USPTO Classifications:
184/14

Tool Categories:
propulsion and energy : steam engines : steam engine lubricators

Assignees:
Sullivan M. Cutcheon - Ypsilanti, MI
Edward P. Allen - Ypsilanti, MI

Manufacturer:
Not known to have been produced

Witnesses:
S. M. Cutcheon
Caleb S. Pitkin
John A. Ellis
E. E. Ellis

Patent Dates:
Applied: Jun. 11, 1873
Granted: Jan. 20, 1874

Patent Pictures:
USPTO pdf tiff
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Wikipedia biography of Elijah McCoy
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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