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Tentative inspection standards for anthracite mines

Inspection standards for bituminous-coal and lignite mines :revised July 1945.

Published Year

• 1940-1949 (2) *

Subject

• Mine inspection--Standards--United States (2) *
• Anthracite coal industry--Standards--United States (1)
• Coal mines and mining--Safety regulations--United States (1)
• Coal mines and mining--United States (1)
• Lignite industry--United States (1)

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