Procedure for establishing list of permissible telephones for use in coal mines.

Bibliographic Details

Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1922.
Series:	Mines Bur. Schedule No. 9A
Subjects:	Coal mines and mining. Mine accidents. Quality control. User charges. Electronic books.
Online Access:	Connect to the full text of this electronic document