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Summary

Description
English: The patent for the Gong and Signal Chair invented by Miriam Benjamin.
Date
Source http://inventors.about.com/library/inventors/blbenjamin.htm [1]
Author Benjamin, Kaiser, Wood

Licensing

Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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inception

17 July 1888Gregorian

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Date/TimeThumbnailDimensionsUserComment
current19:12, 2 June 2021Thumbnail for version as of 19:12, 2 June 20212,320 × 3,408 (105 KB)WickedthoughtHigher res version from the Patent Office
19:34, 13 November 2011Thumbnail for version as of 19:34, 13 November 2011270 × 508 (14 KB)Missvain

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