Collapsible drill steel enclosure for reducing roof bolting machine drilling noise.

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Bibliographic Details
Imprint:	[Pittsburgh, PA] : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2008]
Description:	1 online resource (2 unnumbered pages) : color illustrations.
Language:	English
Series:	Technology news ; no. 532 DHHS (NIOSH) publication ; no. 2008-146 Technology news (National Institute for Occupational Safety and Health) ; no. 532. DHHS publication ; no. (NIOSH) 2008-146.
Subject:	Mine roof bolting -- Equipment and supplies. Mine roof bolting -- Safety measures. Boring -- Equipment and supplies. Boring -- Safety measures. Noise control -- Equipment and supplies. Deafness, Noise induced -- Prevention.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/8734615

Hidden Bibliographic Details
Other authors / contributors:	National Institute for Occupational Safety and Health.
Notes:	Title from PDF caption (viewed Mar. 6, 2012). "September 2008."
GPO item no.:	0499-F-27 (online)
Govt.docs classification:	HE 20.7132/2:532

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