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African American Inventors

Across
Invented refrigeration system for trucks
Created a black hair care business
INVENTED A 3-D OPTICAL ILLUSION DEVICE
1000 USES OF THE PEANUT
PIONEER OF MODERN BLOOD BANKING SYSTEM
Invented automatic lubricator
Down
INVENTED A VERSION OF THE IRONING BOARD
Man who invented an improved light bulb
Pioneered open heart surgery
INVENTED PERMANENT WAVING MACHINE
INVENTED AUTOMATED SHOE LASTING DEVICE
Invented gas mask and traffic signal
INVENTED LASER SURGICAL DEVICE