Original file (1,732 × 800 pixels, file size: 186 KB, 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, 1930, 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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copyright status

public domain

applies to jurisdiction: United States

inception

20 March 1917Gregorian

media type

image/jpeg

checksum

cf1d24e54f82757fe27617ce63abea1de54cda75

determination method or standard: SHA-1

data size

190,634 byte

height

800 pixel

width

1,732 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current12:22, 26 April 2012Thumbnail for version as of 12:22, 26 April 20121,732 × 800 (186 KB)Ras67losslessly cropped with Jpegcrop
00:07, 24 April 2012Thumbnail for version as of 00:07, 24 April 20122,320 × 3,408 (313 KB)Pgmail

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