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Author: Schutz, R. H. | Ferber, B. I. | Kloos, E. J.
Title: Respiratory Protective Devices Approved by the Bureau of Mines as of October 1, 1965.
Coporate: Bureau of Mines, Pittsburgh, PA
Report: IC 8281, 1966, 25 p.
Keywords: respirators | protective clothing | safety | breathing apparatus
Identifiers: mining engineering