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Use of the miners' self-rescuer

Use of a type N miners' gas mask

Published Year

• 1920-1929 (2)

Subject

• Gas masks (1)
• Mine rescue work (1)
• Self-contained self-rescuer (Mine rescue equipment) (1)

Author

• Katz, S. H. (2) *
• Forbes, John J. V. (1)
• McCaa, George S., (1)

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