December 02, 2013

On this day December 2nd...

DARC Ethiophile Chronicles

On December 2, in 1969 Black Women Inventor Marie V. Brittan Brown designed a "Home Security System with Television Surveillance" for the homeowner to view the visitor on a television screen and the visitor also able to view a screen. The homeowner could open the door via a manual lock mechanism. Patent No. 3,482,037 December 2, 1969

Leave a comment

Comments have to be approved before showing up.