TungFil.jpg
Summary
Description TungFil.jpg |
English:
This is a photograph on a website of the Smithsonian Institute's Museum of American History of an early (1905) GE tungsten filament incandescent light bulb. The Smithsonian Institute is an agency of the US Govt, which by law cannot own copyright. The image is therefore in the PD.
The picture is of a tungsten filament lamp embodying the invention of US Pat 1,018,502, which was one of those involved in the 1926 US v GE litigation.
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Source |
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Author | PraeceptorIP at en.wikipedia |
Licensing
Public domain Public domain false false |
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This image or file is a work of a
Smithsonian Institution
employee, taken or made as part of that person's official duties. As a
work
of the
U.S. federal government
, the image is in the
public domain
in the United States.
العربيَّة | English | español | français | 한국어 | русский | 中文 | 中文(简体) | +/− |
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Original upload log
The original description page was
here
. All following user names refer to en.wikipedia.
Upload date | User | Bytes | Dimensions | Comment
- 2009-02-26 19:03 (UTC) | PraeceptorIP | 19367 (bytes) | 150×334 | This is a photograph on a website of the Smithsonian Institute's Museum of American History of an early (1905) GE tungsten filament incandescent light bulb. The Smithsonian Institute is an agency of the US Govt, which by law cannot own copyright. The imag