American inventor Thomas Alva Edison at General Electric company in the United States. Edison meets Dr. Irving Langmuir, the inventor of gas filled incandescent lamp. Dr. Langmuir and Edison look at lamps in the laboratory. Langmuir shows a large light bulb to Edison. They discuss. Langmuir explains about a high power vacuum tube to Edison. A hand holding a radio tube.
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| Type | Size | Price (USD) Comprehensive All Media License |
Price (USD) Digital-Only License |
|---|---|---|---|
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