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A coal-fired water pump
Preparation characteristics of coal from Clarion County, Pa.
Preparation characteristics of coal from Beaver and Lawrence counties, Pa.
Preparation characteristics of coal from Clay, Gilmer, and Lewis counties, W. Va.
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Published Year
1960-1969 (4) *
Subject
Coal preparation (3)
Coal--Pennsylvania (1)
Coal--West Virginia (1)
Pumping machinery (1)
Author
Zeilinger, John E. (4) *
Deurbrouck, A. W. (1)
Hiteshue, R. w. (1)
Kawa, Walter. (1)
Lewis, P. S. (1)
