Procedure for establishing a list of permissible self-­contained oxygen breathing apparatus, fees, character of tests, and conditions under which mine rescue breathing apparatus will be tested.

Bibliographic Details
Corporate Author: United States. Bureau of Mines
Format: Government Document eBook
Language:English
Published: [Washington] : [s.n.], 1935.
Subjects:
Online Access:Electronic resource (PDF)
Description
Physical Description:1 online resource (14 pages), digital, PDF file