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State mine inspectors :their appointment, qualifications, and remuneration
Mining statutes of the state of Pennsylvania(summarized)
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Published Year
1930-1939 (2) *
Subject
Anthracite coal--Pennsylvania (1)
Bituminous coal--Pennsylvania (1)
Coal mines and mining--Pennsylvania (1)
Mine inspection (1)
Mining law--Pennsylvania (1)
Author
Huff, J. A. (2) *
Baker, V. V. (1)
