A Black Man Receives a Steam Trap Patent

Tue, 02.11.1890

A Black Man Receives a Steam Trap Patent

Steam Trap blueprint

*On this date in 1890, a Black man received a Steam Valve patent. Machinist and union activist Frank J. Ferrell was the inventor; his patent number was 420 993.

Reference:

USPO.gov

Created Equal: The Lives and Ideas of Black American Innovators
By James Michael Brodie
Copyright 1993, by Bill Adler Books, Inc.
William Morrow and Co. Inc., New York
ISBN 0-688-11536-5

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