Procedure for establishing list of permissible multiple-shot blasting machines; character of tests, and conditions under which machines will be tested, and fees.

Bibliographic Details

Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1920.
Series:	Mines Bur. Schedule No. 16
Subjects:	Lamps. Mine accidents. Quality control. User charges. Electronic books.
Online Access:	Connect to the full text of this electronic document