McCoy Manufacturing -Elijah McCoy: McCoy worked for the Michigan Central Railroad as a locomotive fireman. After becoming a mechanical engineer, he invented a device that made it possible to oil machinery while it was running. To distinguish it from cheaper imitations, it became known as “The Real McCoy”. McCoy patented fifty different automatic lubricators and, at age 77, began the Elijah McCoy Manufacturing Company in Detroit.
Source: www.tnj.com
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