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Description	English: The LOGO Processor, A Guide for System Programmers, BBN-Report-2165, June 30, 1971.
Date	30 June 1971
Source	November 30, 1969
Author	Walter B. Weiner et al

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This work is in the public domain in the United States because it was published in the United States between 1930 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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Category:PD US no notice#The%20LOGO%20Processor,%20A%20Guide%20for%20System%20Programmers,%20BBN-Report-2165,%20June%2030,%201971.pdf Category:PD-US missing SDC copyright status Category:BBN reports Category:Logo (programming language)

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File:The LOGO Processor, A Guide for System Programmers, BBN-Report-2165, June 30, 1971.pdf

Summary

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