Jump to content

File:TungFil.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

TungFil.jpg (150 × 334 pixels, file size: 19 KB, MIME type: image/jpeg)

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

Public domain
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)‎ | +/−


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/TimeThumbnailDimensionsUserComment
current16:05, 18 September 2011Thumbnail for version as of 16:05, 18 September 2011150 × 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

Metadata