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You searched for: All Creators Cash, Frank E. (Frank Errette) Digital Content No Digital Content

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Creator Personal:: Petersen, Max S., Cash, Frank E. (Frank Errette)
Title:: Electric blasting switches, underground mines, Lake Superior District.
Call Number:: P19460
Date:: 1946
Description:: Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7372 (1946:Sept.).
Subject Topical:: Ground control (Mining)--Lake States., Mine safety--Lake States., Iron mines and mining--Lake States--Safety measures.
All:: Ground control (Mining)--Lake States., Mine safety--Lake States., Iron mines and mining--Lake States--Safety measures.

Creator Personal:: Cash, Frank E. (Frank Errette)
Title:: Storage of explosives in underground mines of the Lake Superior District.
Call Number:: P19467
Date:: 1946
Description:: Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7343 (1946:Feb.).
Subject Topical:: Iron mines and mining--Wisconsin., Iron mines and mining--Michigan., Mine explosives., Iron mines and mining--Minnesota.
All:: Iron mines and mining--Wisconsin., Iron mines and mining--Michigan., Mine explosives., Iron mines and mining--Minnesota.

Creator Personal:: Pearce, Clyde M., Cash, Frank E. (Frank Errette)
Title:: Testing safety catches on mine cages, Lake Superior district.
Call Number:: P19476
Date:: 1945
Description:: Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7325 (1945:June).
Subject Topical:: Iron mines and mining--Safety appliances--Lake States--Equipment and supplies.
All:: Iron mines and mining--Safety appliances--Lake States--Equipment and supplies.

Printed Ephemera Collection