File:Ringovn.jpg

Ringovn.jpg ‎(179 × 280 pixels, file size: 17 KB, MIME type: image/jpeg)

Summary

Description
Dansk: Skitse af en ringovn fra Friedrich Eduard Hoffmanns (1818-1900) patentansøgning i 1858.
Date
Source http://www.zehdenick.org/deintrag.php?id=43
Author Friedrich Eduard Hoffmann
Permission
(Reusing this file)		 This illustration may be considered public domain as author died for more than 70 years ago and it's the illustration for a patent.

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 Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
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Date/TimeThumbnailDimensionsUserComment
current21:08, 17 January 2008Thumbnail for version as of 21:08, 17 January 2008179 × 280 (17 KB)Sindala{{Information |Description={{da|Skitse af en ringovn fra patentansøgningen i 1858. Kilde: http://www.zehdenick.org/deintrag.php?id=43}} |Source=Transferred from [http://da.wikipedia.org da.wikipedia] |Date=2006-07-27 (first version); 2006-07-28 (last ve
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