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  1. 1
    Danger of carbon monoxide gas.

    Danger of carbon monoxide gas.

    Published 1925
    Subjects: “…Air Pollution.…”
    Full Text (via ProQuest)
    Government Document eBook
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  2. 2
    Coal-mine ventilation : Technical information for use in vocational training classes.

    Coal-mine ventilation : Technical information for use in vocational training classes.

    Published 1931
    Subjects:
    Full Text (via ProQuest)
    Government Document eBook
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