Re-issue of P97-24 portable methane detectors magnetically attached to mining machinery (the "gizmo").

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Bibliographic Details
Imprint:	[Arlington, Va. : U.S. Dept. of Labor, Mine Safety and Health Administration, 2009]
Description:	1 online resource (3 p.).
Language:	English
Series:	Program information bulletin ; no. P09-20 Program information bulletin ; no. P09-20.
Subject:	Mine gases -- United States -- Measurement -- Equipment and supplies -- Safety measures. Methane -- United States -- Measurement -- Equipment and supplies. Methane -- United States -- Safety measures. Coal mines and mining -- Safety regulations -- United States -- Equipment. Methane -- Safety measures. United States.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/8541794

Hidden Bibliographic Details
Varying Form of Title:	Portable methane detectors magnetically attached to mining machinery, the gizmo
Other authors / contributors:	United States. Mine Safety and Health Administration.
Notes:	Title from title screen (viewed on Oct. 31, 2011). "Issue date 07/31/09."
GPO item no.:	0637-H-02 (online)
Govt.docs classification:	L 38.22:P 09-20

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