Collapsible drill steel enclosure for reducing roof bolting machine drilling noise.
| Other author | National Institute for Occupational Safety and Health. |
| Format | Electronic |
| Publication Info | [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] p.) : col. ill. |
| Supplemental Content | https://purl.fdlp.gov/GPO/gpo19691 |
| Subjects |
| Series | Technology news ; no. 532 DHHS (NIOSH) publication ; no. 2008-146 Technology news (National Institute for Occupational Safety and Health) ; no. 532. ^A783634 DHHS publication no. (NIOSH) 2008-146. ^A8861 |
| General note | Title from PDF caption (viewed Mar. 6, 2012). |
| General note | "September 2008." |
| General note | GPO Cataloging Record Distribution Program (CRDP). |
| GPO item number | 0499-F-27 (online) |
| Govt. docs number | HE 20.7132/2:532 |