Portable battery-powered megaphones.

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Bibliographic Details
Corporate author / creator:	United States. Federal Aviation Administration.
Imprint:	[Washington, D.C.] : Federal Aviation Administration, [1966]
Description:	1 page : digital, PDF file.
Language:	English
Series:	Advisory circular ; AC no. 121-6 United States. Federal Aviation Administration. Advisory circular ; AC 121-6.
Subject:	Megaphones -- Certification -- United States. Airplanes -- United States -- Equipment and supplies -- Certification.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/7681647

Hidden Bibliographic Details
Notes:	Title from PDF caption (viewed Mar. 5, 2009). "l/5/66." Mode of access: Internet at the FAA web site. Address as of 3/5/09: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/48617be49343eea1862569bc0057d246/$FILE/ac121-6.pdf; current access available via PURL.
GPO item no.:	0431-A-27 (online)
Govt.docs classification:	TD 4.8/5:121-6

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