Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roof support in coal mines in Irwin, Greensburg, and Latrobe Basins, Westmoreland County, Pa.
Geology and topography; characteristics of coal bed; roof hazards; statistical data on production of mines, causes of accidents, ratio of accidents to production; details of study of mines, listed by letters A to L.
Roof support in coal mines in Irwin, Greensburg, and Latrobe Basins, Westmoreland County, Pa.
Geology and topography; characteristics of coal bed; roof hazards; statistical data on production of mines, causes of accidents, ratio of accidents to production; details of study of mines, listed by letters A to L.
Roof support in coal mines in Irwin, Greensburg, and Latrobe Basins, Westmoreland County, Pa.
U. S. Bur. Mines -- Report Investigations
Paul, J.W. (Autor:in) / Tomlinson, H. (Autor:in) / Craighead, S.J. (Autor:in)
1931
77 pages
17 Figs. Supp plates.
Report
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Online Contents | 2015
5.4.7 ARTS CENTER, GREENSBURG, KANSAS
| British Library Online Contents | 2010
| TIBKAT | 1955