The rock dust remedy for coal mine explosions;
an open letter to the operators in the 27th bituminous district of Pennsylvania,
by Harry Phythyon ...

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Main Author
Phythyon, Harry.
Language(s)
English
Published
Belle Vernon, Pa., Belle Vernon agency [©1926]
Subjects
Mine explosions.
Coal mines and mining > Safety measures.
Coal mines and mining > Safety measures.
Mine explosions.
Physical Description
190 pages 21 cm
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Full view   University of Illinois at Urbana-Champaign