Patents Issued To Elijah McCoy
By Mary Bellis, About.com
U.S. patent #129,843 - Improvement in lubricators for steam engines - issued on 7/23/1872
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- Elijah McCoy - Drawing For Patent #129,843
- Elijah McCoy - Text For Patent #129,843
- Elijah McCoy - Improvement in lubricators for steam engines
- Elijah McCoy - Improvement in ironing tables
Elijah McCoy
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