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jan 1, 1903 - Willis R. Whitney invented a treatment.

Description:

Willis R. Whitney invented a treatment for the filament so that it wouldn't darken the inside of the bulb as it glowed

Added to timeline:

20 Feb 2018
0
0
353
The Life Of A Lightbulb

Date:

jan 1, 1903
Now
~ 121 years ago

Images:

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