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You searched for: Creator Personal Names Gleim, E. J. (Ernest J.) Subject Topical Mine safety.

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1. Some signaling systems in metal-mine shafts.

Creator Personal:: Mosier, McHenry., Gleim, E. J. (Ernest J.)
Title:: Some signaling systems in metal-mine shafts.
Call Number:: P19470
Date:: 1939
Description:: Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7083 (1939:June).
Subject Topical:: Signals and signaling., Mine safety., Mine communication systems.
All:: Signals and signaling., Mine safety., Mine communication systems.

2. Electrical viewpoint in a complete safety survey of a coal mine.

Creator Personal:: Gleim, E. J. (Ernest J.)
Title:: Electrical viewpoint in a complete safety survey of a coal mine.
Call Number:: P20753
Date:: 1936
Description:: Serial issue. Issued as: United States. Bureau of Mines. Information circular, I. C. 6894 (1936:July).
Subject Topical:: Mine safety., Coal mines and mining--Safety measures.
All:: Mine safety., Coal mines and mining--Safety measures.