Timber withdrawing and devices used for this purpose in some coal mines / by J.W. Paul and J.G. Caverley.
Saved in:
Online Access: |
Search for the full-text version of this title in HathiTrust |
---|---|
Main Author: | |
Corporate Author: | |
Other Authors: | |
Format: | Government Document Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1933.
|
Series: | Information circular (United States. Bureau of Mines) ;
6722. |
Subjects: |