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1 janv. 1840 - Warren de la Rue Made a design with platinum

Description:

Enclosed a coiled platinum filament in a vaccum tube and passed electric current through it

Ajouté au bande de temps:

history of light bulb

ByKarthika C M
6 févr. 2020
0
0
222

Date:

1 janv. 1840
Maintenaint
~ Il y a 185 ans
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