Permissible explosives, mining equipment, and rescue apparatus approved prior to Jan. 1, 1925.

Bibliographic Details

Corporate Author:	United States. Department of Commerce
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1925.
Subjects:	Explosives. Lamps. Machinery. Mines and mineral resources. Electronic books.
Online Access:	Connect to the full text of this electronic document