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Permissible explosives, mining equipment, and apparatus approved prior to January 1, 1925

Additions, Removals and Changes in Permissible List of Explosives from January 1, 1925 to July 31, 1926

The Trauzl block strength of dynamites

Extinction of methane flames by dichloro-difluoro-methane

Gases in manholes :a survey of a utility in Boston, Mass.

Liquid-Oxygen Explosives

Published Year

• 1920-1929 (2)
• 1930-1939 (4)

Subject

• Coal mines and mining--Safety measures (2)
• Coal mines and mining (1)
• Dynamite--Testing (1)
• Explosives (1)
• Fire extinction (1)
• Manholes (1)
• Methane (1)
• Mine explosions (1)
• Mine explosions--Safety measures (1)
• Waste gases (1)

Author

• Perrott, G. St. J. (6) *
• Jones, G. W. (2)
• Crawshaw, John Edwards, (1)
• Fieldner, A.C. (1)
• Ilsley, L.C. (1)
• Parker, D.J. (1)
• Tolch, N. A. (1)

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