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Original file(2,242 × 3,204 pixels, file size: 221 KB, MIME type: image/vnd.djvu, 10 pages)

Description
English: Canadian Patent No. 30172 — Method & App. for Converting & Distributing Electric 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 more than 50 years ago.
Flag of Canada (Pantone).svg

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Date/TimeThumbnailDimensionsUserComment
current03:37, 30 November 2008Thumbnail for version as of 03:37, 30 November 20082,242 × 3,204, 10 pages (221 KB)T. Mazzei{{Information |Description={{en|1=Canadian Patent No. 30172 — Method & App. for Converting & Distributing Electric Currents}} |Source=Canadian Department of Agriculture - Patent Division |Author=Nikola Tesla |Date=May 1, 1888 |Permission= |other_version