A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permissible mine equipment approved during 1942
Supplementing U S Bur Mines -- information Cir n 7207, indexed in Engineering Index 1942 p 220, present list covers additional equipment approved during calendar year 1942. (see also Min Congress J v 29 n 9 Sept 1943 p 31, 65)
Permissible mine equipment approved during 1942
Supplementing U S Bur Mines -- information Cir n 7207, indexed in Engineering Index 1942 p 220, present list covers additional equipment approved during calendar year 1942. (see also Min Congress J v 29 n 9 Sept 1943 p 31, 65)
Permissible mine equipment approved during 1942
U S Bur Mines -- Information Cir
Gleim, E.J. (author)
1943
4 pages
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Notes pertaining to safety inspections of permissible electric mine equipment
| Engineering Index Backfile | 1932
Investigations of permissible electric mine lamps, 1930-40
| Engineering Index Backfile | 1942
Spence mine expansion approved
Online Contents | 2017
American Barrick Meikle mine approved
Online Contents | 1994