Report of investigations. 6378. Experimental longwall mining in Pennsylvania anthracite mine: 1, Use of yielding steel props [with list of references]; by Robert J. Brennan, John W. Buch, and Edward R. Navrocky.
Publication Title:
Experimental longwall mining in Pennsylvania anthracite mine: 1, Use of yielding steel props [with list of references]; by Robert J. Brennan, John W. Buch, and Edward R. Navrocky.
Display Title:
Report of investigations. 6378. Experimental longwall mining in Pennsylvania anthracite mine: 1, Use of yielding steel props [with list of references]; by Robert J. Brennan, John W. Buch, and Edward R. Navrocky.
Series Title:
Report of investigations.
Corporate Agency Authors:
Mines Bureau and Interior Dept.
Sort Author:
Mines Bureau
Authors:
Brennan, Robert J., Buch, John W., and Navrocky, Edward R.
Date:
[1964.]
Publish Date ISO Format:
1964-01-01T00:00:00Z
Publication Start:
19640101
Publication End:
19641231
Corporate/Agency Author:
Mines Bureau
Publication month:
13
Publication year:
1964
SuDoc number:
I 28.23:(nos.)
Description:
[2]+ii+27 p. il. 4°
Notes:
[Based on work done in cooperation with Glen Alden Corp.]
Notes:
[Based on work done in cooperation with Glen Alden Corp.] † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.
Availability:
† Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.