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  • Bradburn, R. A.; Bowser, M. L.
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    Minature Bilevel Alarm for Oxygen-Deficient Atmospheres.
    Bureau of Mines, Pittsburgh, PA
    RI 7165
    RI 7165
    August 1968
    19 p.

  • Stateham, R. M.; Bowser, M. L.
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    Using handheld Infrared Imagers to Locate Miners in Smoke-Filled Mine Openings.
    Bureau of Mines, Denver, CO; Bureau of Mines, Pittsburgh, PA
    TPR 87
    TPR 87
    February 1975
    13 p.