Revised classification of radio subjects used in National Bureau of Standards.
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Publication
1947 - The Bureau, Washington, DC, District of Columbia
Language
English
Word Count
26,500 words, Guess
Page Count
106 pages
Identifiers
- Open LibraryOL15071825M
Classifications
- DDC6621.3841
Subjects
Series Statement
- Letter circular / U.S. Dept. of Commerce, National Bureau of Standards -- LC-882
- Letter circular (United States. National Bureau of Standards) -- LC-882
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