Elijah J. McCoy - 10millionpatents.uspto.gov · Elijah J. McCoy Patent 129843 Title: standupc...

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Elijah J. McCoy Patent 129843 WWW.USPTO.GOV/kids/

Transcript of Elijah J. McCoy - 10millionpatents.uspto.gov · Elijah J. McCoy Patent 129843 Title: standupc...

Elijah J. McCoy Patent 129843WWW.USPTO.GOV/kids/