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

Bibliographic Details
Corporate Author: United States. Mine Safety and Health Administration
Format: Government Document eBook
Language:English
Published: [Arlington, Va.] : [U.S. Dept. of Labor, Mine Safety and Health Administration], [2009]
Series:Program information bulletin ; no. P09-20.
Subjects:
Online Access:https://purl.fdlp.gov/GPO/gpo14596
Description
Item Description:Title from title screen (viewed on Oct. 31, 2011).
"Issue date 07/31/09."
Electronic resource.
Physical Description:1 online resource (3 pages).