Pott-Broche coal-extraction process and plant of Ruhr©·ol G. m. b. H., Bottrop-Welheim, Germany

Author:	Lowry, H. H.
Additional Authors:	Rose, H. J.
Year:	1947
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7420
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7420
Subjects:	Coke--Germany--Ruhr (Region)
	Coal--Germany--Ruhr (Region)
	Coal mines and mining--Germany--Ruhr (Region)
Link:	https://hdl.handle.net/2027/mdp.39015077577701