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Tue, 02.13.1973

A Black Man, and Woman Patent a Corner Cleaner Attachment

*On this date in 1973, a Black man and woman patented a corner cleaner attachment.  Gertrude E. Downing and William. Desjardin received patent No. 3,715,772.

The device combines two cleaning machines for the expense of one.

Reference:

USPO.gov

U.S. Patent and Trademark Office
Mail Stop USPTO Contact Center
P.O. Box 1450
Alexandria, VA 22313

Black Inventors and Inventions.com

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