File:Janney coupler drawing.png

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Original file (1,450 × 754 pixels, file size: 14 KB, MIME type: image/png)
Description
English: Diagram of Janney coupler
Date
Source U.S. Patent 138,405
Author Eli H. Janney
Permission
(Reusing this file)
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, 1931, 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

1 April 1873Gregorian

data size

14,808 byte

height

754 pixel

width

1,450 pixel

media type

image/png

checksum

9d12509fabc0b5ad78e7581085c2bb54f8f6b11d

determination method or standard: SHA-1

File history

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Date/TimeThumbnailDimensionsUserComment
current21:13, 27 September 2015No thumbnail1,450 × 754 (14 KB)wikimediacommons>Mikhail Ryazanov{{Information |Description = {{en|1= Diagram of a knuckle Janney coupler }} |Source = {{US patent|138,405}} |Date = 1873-04-01 |Author = Eli H. Jaiwey |Permission = {{PD-US}} |other_versions= }} Category:Knuckle coupler
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