File:WilliamsTubeFigure1.tiff

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WilliamsTubeFigure1.tiff(531 × 466 pixels, file size: 31 KB, MIME type: image/tiff, 1 page)
Description
English: Figure 1 from the 1947 US Patent 2951176 on the w:Williams tube, perhaps the earliest successful computer memory.
Date
Source US Patent 2951176 (http://www.google.com/patents?vid=2951176)
Author Frederic Calland Williams
Permission
(Reusing this file)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted.See [1], 37 CFR 1.7(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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Date/TimeThumbnailDimensionsUserComment
current21:57, 25 May 2012Thumbnail for version as of 21:57, 25 May 2012531 × 466 (31 KB)ArnoldReinhold{{Information |Description ={{en|1=Figure 1 from the 1947 US Patent 2951176 on the w:Williams tube, perhaps the earliest successful computer memory.}} |Source =US Patent 2951176 (http://www.google.com/patents?vid=2951176) |Author ...
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