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You searched for: All Creators Gleim, E. J. (Ernest J.) Remove constraint All Creators: Gleim, E. J. (Ernest J.) Digital Content No Digital Content Remove constraint Digital Content: No Digital Content All Subjects Mine safety. Remove constraint All Subjects: 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.