File:Canadian patent 33317, Figures.png

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Description
English: Canadian Patent No. 33317 — Method & App. for Converting Alternating into Direct Currents
Date
Source Canadian Department of Agriculture - Patent Division
Author Nikola Tesla
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

19 December 1889Gregorian

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image/png

checksum

2a73f7f0ffc5becd35e0eb8c136d568263925347

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Date/TimeThumbnailDimensionsUserComment
current15:19, 17 March 2010Thumbnail for version as of 15:19, 17 March 20101,873 × 3,120 (57 KB)Phe{{Information |Description={{en|1=Canadian Patent No. 33317 — Method & App. for Converting Alternating into Direct Currents}} |Source=Canadian Department of Agriculture - Patent Division |Author=Nikola Tesla |Date=1889-12-19 |Permission= |other_versions

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