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Use of the miners' self-rescuer
Use of a type N miners' gas mask
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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)