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Tentative coal-mine inspection standards

Tentative bituminous-and lignite-mine inspection standards :revised September 1943

Tentative inspection standards for anthracite mines

Tentative inspection standards for anthracite mines

Published Year

• 1940-1949 (4)

Subject

• Coal mines and mining--Safety regulations--United States (4) *
• Mine inspection--Standards--United States (4)
• Anthracite coal industry--Standards--United States (2)
• Bituminous coal industry--Standards--United States (1)
• Lignite industry--Standards--United States (1)

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