Search Results
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1
Estimate of known recoverable reserves of coking coal in Cambria County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1950Description: vi, 25 pages : illustrations ; 28 cm.Government Document Book -
2
Estimate of known recoverable reserves of coking coal in Indiana County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1950Description: 22 pages : illustrations ; 27 cm.Government Document Book -
3
Estimate of known recoverable reserves of coking coal in Armstrong County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1951Description: vi, 16 pages : illustrations, maps ; 27 cm.Government Document Book -
4
Estimate of known recoverable reserves of coking coal in Westmoreland County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1951Description: v, 16 pages : illustrations, maps ; 27 cm.Government Document Book -
5
Estimate of known recoverable reserves of coking coal in Fayette County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1951Description: 19 pages : illustrations ; 26 cm.Government Document Book -
6
Estimate of known recoverable reserves of coking coal in Floyd County, Ky
Published: U.S. Dept. of the Interior, Bureau of Mines, 1951Description: 16 pages : illustrations ; 26 cm.Government Document Book -
7
Estimate of known recoverable reserves of coking coal in Raleigh County, W. Va
Published: U.S. Dept. of the Interior, Bureau of Mines, 1952Description: vi, 37 pages : illustrations, maps ; 27 cm.Government Document Book -
8
Estimate of known recoverable reserves of coking coal in Knott County, Ky
Published: U.S. Dept. of the Interior, Bureau of Mines, 1952Description: 20 pages : illustrations ; 27 cm.Government Document Book -
9
Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va
Published: U.S. Dept. of the Interior, Bureau of Mines, 1952Description: ii, 13 pages, 10 unnumbered leaves of plates : illustrations ; 27 cm.Government Document Book -
10
Mining with a Dosco continuous miner on a longwall face
Published: U.S. Dept. of the Interior, Bureau of Mines, 1954Description: 11 pages : illustrations ; 27 cm.Government Document Book -
11
Estimate of known recoverable reserves of coking coal in Jefferson County, Pa
Published: U.S. Dept. of the Interior, Bureau of Mines, 1952Description: vi, 18 pages : illustrations ; 27 cm.Government Document Book -
12
Estimate of known recoverable reserves of coking coal in Letcher County, Ky
Published: U.S. Dept. of the Interior, Bureau of Mines, 1953Description: vi, 26 pages, 12 unnumbered leaves of plates : illustrations ; 27 cm.Government Document Book -
13
Estimate of known recoverable reserves of coking coal in Harlan County, Ky
Published: U.S. Dept. of the Interior, Bureau of Mines, 1954Description: vi, 26 pages : illustrations ; 27 cm.Government Document Book -
14
Estimate of known recoverable reserves of coking coal in Ohio County, W. Va
Published: U.S. Dept. of the Interior, Bureau of Mines, 1955Description: vi, 14 pages : illustrations, maps ; 27 cm.Government Document Book -
15
Estimate of known recoverable reserves of coking coal in Brooke County, W. Va
Published: U.S. Dept. of the Interior, Bureau of Mines, 1955Description: vi, 17 pages : illustrations, maps ; 27 cm.Government Document Book -
16
Modified longwall mining with German coal planers : summary of operations at five coal mines
Published: U.S. Dept. of the Interior, Bureau of Mines, 1957Description: ii, 31 pages : illustrations ; 27 cm.Government Document Book -
17
The use of augers in surface mining of bituminous coal
Published: U.S. Dept. of the Interior, Bureau of Mines, 1957Description: ii, 22 pages : illustrations ; 27 cm.Government Document Book