English: An early Heathkit advertisement. Their first kits, introduced in 1947, utilized surplus wartime electronic parts. Radio & Television News, January 1949, Volume 41 Number 1. Ziff-Davis Publishing.
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This page was scanned by User:Swtpc6800 with an Epson Perfection 1240U in July 2008.
This advertisement did not have a copyright notice and is in the public domain.
From the US Copyright Office Circular 3. Page 3, Contributions to Collective Works. (A magazine is a "collective work.")
A notice for the collective work will not serve as the notice for advertisements inserted on behalf of persons other than the copyright owner of the collective work. These advertisements should each bear a separate notice in the name of the copyright owner of the advertisement.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
== {{int:filedesc}} == {{Information | Description={{en|1= An early Heathkit advertisement. Their first kits, introduced in 1947, utilized surplus wartime electronic parts. </br> ''Radio & Television News'', January 1949, Volume 41 Number 1. Ziff-Dav...