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Ultra low frequency electromagnetic fire alarm system for underground mines / by K.E. Hjelmstad and W.H. Pomroy.

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Available copies

  • 1 of 1 copy available at Evergreen Indiana.

Current holds

0 current holds with 1 total copy.

Series Information

Report of investigations (United States. Bureau of Mines)
Location Call Number / Copy Notes Barcode Shelving Location Status Due Date
Indiana State Library - Indianapolis I 28.23:9377 (Text) 648171-1001 General Federal documents Available -

Record details

  • Physical Description: 11 pages : illustrations ; 28 cm.
  • Publisher: Washington, D.C. (2401 E St., N.W., Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, 1991.

Content descriptions

General Note:
Distributed to depository libraries in microfiche.
Bibliography, etc. Note:
Includes bibliographical references (page 11).
Subject: Mine fires > Prevention and control.
Fire alarms.
ELF electromagnetic fields.

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