File:Canadian patent 142352.png

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Canadian_patent_142352.png ‎(556 × 514 pixels, file size: 72 KB, MIME type: image/png)

Description
English: Canadian Patent No. 142352 — Electrical Energy Transmission
Date
Source Canadian Department of Agriculture - Patent Division
Author Nikola Tesla
Other versions File:Canadian patent 142352.djvu
Public domain
This Canadian work is in the public domain in Canada because its copyright has expired due to one of the following:
1. it was subject to Crown copyright and was first published more than 50 years ago, or

it was not subject to Crown copyright, and

2. it is a photograph that was created prior to January 1, 1949, or
3. the creator died prior to January 1, 1972.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.

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inception

13 August 1912Gregorian

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image/png

checksum

d470b2ca9c8ef776cdc733e3d7c741ee62a0379d

determination method: SHA-1

data size

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width

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Date/TimeThumbnailDimensionsUserComment
current03:42, 21 April 2013Thumbnail for version as of 03:42, 21 April 2013556 × 514 (72 KB)Moondyne{{Information |Description={{en|1=Canadian Patent No. 142352 — Electrical Energy Transmission }} |Source=Canadian Department of Agriculture - Patent Division |Author=Nikola Tesla |Date=1912-08-13 |Permission= |other_versions=[[:File:Canadian patent 1...

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