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File:004 Sundback zipper 1917 patent.jpg

Original file ‎(2,320 × 3,408 pixels, file size: 1.63 MB, MIME type: image/jpeg)

Summary

Description
English: _Sundback_zipper_1917_patent_
Date
Source Sundback_zipper_1917_patent_
Author Gideon Sundback

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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depicts

inception

20 March 1917Gregorian

MIME type

image/jpeg

checksum

11c57423e563548440bb29408a39d22e1cef7feb

determination method: SHA-1

data size

1,706,907 byte

height

3,408 pixel

width

2,320 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current00:08, 24 April 2012Thumbnail for version as of 00:08, 24 April 20122,320 × 3,408 (1.63 MB)Pgmail
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