'Lewis Latimer developed a carbon filament for this device & later worked for its inventor'
Light bulb
AFRICAN AMERICANS: Lewis Latimer developed a carbon filament for this device & later worked for its inventor
Lewis Latimer developed a carbon filament for this device & later worked for its inventor
Lewis Latimer developed a carbon filament for this device & later worked for its inventor
AFRICAN AMERICANS
Light bulb
AFRICAN AMERICANS