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File:BBN Packet Radio 1980 Final, December 1980.pdf

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English: BBN Packet Radio report, 1980 Final, December 1980.
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Source https://nsarchive.gwu.edu/sites/default/files/documents/5793288/National-Security-Archive-Bolt-Beranek-and.pdf
Author BBN technical staff

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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
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.

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current17:19, 16 June 2022Thumbnail for version as of 17:19, 16 June 20221,197 × 1,525, 38 pages (2.79 MB)Daderot (talk | contribs)Uploaded a work by BBN technical staff from https://nsarchive.gwu.edu/sites/default/files/documents/5793288/National-Security-Archive-Bolt-Beranek-and.pdf with UploadWizard

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