File:TungFil.jpg
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TungFil.jpg (150 × 334 pixels, file size: 19 KB, MIME type: image/jpeg)
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Summary
| Description |
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. |
| Source | |
| Author | PraeceptorIP at en.wikipedia |
Licensing
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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.
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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
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:05, 18 September 2011 | | 150 × 334 (19 KB) | SreeBot | (Original text) : 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 c |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
