Ultra low frequency electromagnetic fire alarm system for underground mines / by K.E. Hjelmstad and W.H. Pomroy (Report of investigations ; 9377)

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

(Report of investigations ; 9377)

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Note (General)：: Distributed to depository libraries in microfichePhysical description for original version: 11 p. : 28 cm

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Material Type: 図書
Title: Ultra low frequency electromagnetic fire alarm system for underground mines / by K.E. Hjelmstad and W.H. Pomroy
Series Title: Report of investigations ; 9377
Title Heading: Report of investigations (United States. Bureau of Mines) ; 9377
Author Heading: Hjelmstad, Kenneth E
Pomroy, William H
United States. Bureau of Mines
Publication Date (W3CDTF): 1991
Extent: microfiche
Size: 11 × 15 cm
Place of Publication (Country Code): US
Text Language Code: eng
Note (Material Type): [microform]
Subject Heading: Mine fires -- Prevention and control
Fire alarms
ELF electromagnetic fields
Note (General): Distributed to depository libraries in microfiche
Physical description for original version: 11 p. : 28 cm
Note (Bibliography): Includes bibliographical references (p. 11)
Note (Original Version): 原資料の出版事項: Washington, D.C. (2401 E St., N.W., Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, 1991
SUPTDOC番号: I 28.23: 9377
GPO管理番号: 0637-A (MF)
Holding library: 国立国会図書館
Call No.: YCA-I 28.23:9377
Data Provider (Database): 国立国会図書館 : 国立国会図書館蔵書
https://ndlsearch.ndl.go.jp
Bibliographic ID (NDL): 000006571822
http://id.ndl.go.jp/bib/000006571822
OCLC No.: 23179789
https://www.worldcat.org/oclc/23179789
Bibliographic Record Category (NDL): 281