Report of investigations. 5355. Modified longwall mining with German coal planers, summary of operations at 5 coal mines; by W. A. Haley and J. J. Dowd.
Publication Title:
Modified longwall mining with German coal planers, summary of operations at 5 coal mines; by W. A. Haley and J. J. Dowd.
Display Title:
Report of investigations. 5355. Modified longwall mining with German coal planers, summary of operations at 5 coal mines; by W. A. Haley and J. J. Dowd.
Series Title:
Report of investigations.
Corporate Agency Authors:
Mines Bureau and Interior Dept.
Sort Author:
Mines Bureau
Authors:
Haley, W. A. and Dowd, J. J.
Date:
Aug. 1957
Publish Date ISO Format:
1957-08-01T00:00:00Z
Publication Start:
19570801
Publication End:
19570831
Corporate/Agency Author:
Mines Bureau
Publication month:
5
Publication year:
1957
SuDoc number:
I 28.23:(nos.)
Description:
[3]+ii+ 31 p. il. 4°
Notes:
[Processed.]
Notes:
[Processed.] † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.
Availability:
† Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa.