Frictional ignition with coal mining bits / by Welby G. Courtney (Information circular ; 9251)

Frictional ignition with coal mining bits / by Welby G. Courtney

(Information circular ; 9251)

Notes on use

Note (General)：: Distributed to depository libraries in microfichePhysical description for original version: ii, 25 p. : 28 cm

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Material Type: 図書
Title: Frictional ignition with coal mining bits / by Welby G. Courtney
Series Title: Information circular ; 9251
Title Heading: Information circular (United States. Bureau of Mines) ; 9251
Author Heading: Courtney, Welby G
United States. Bureau of Mines
Publication Date (W3CDTF): 1990
Extent: microfiche
Size: 11 × 15 cm
Place of Publication (Country Code): US
Text Language Code: eng
Note (Material Type): [microform]
Subject Heading: Coal-cutting bits -- Testing
Friction
Methane -- Combustion
Note (General): Distributed to depository libraries in microfiche
Physical description for original version: ii, 25 p. : 28 cm
Note (Bibliography): Includes bibliographical references (p. 25)
Note (Original Version): 原資料の出版事項: Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines, 1990
SUPTDOC番号: I 28.27: 9251
GPO管理番号: 0637-A (MF)
Holding library: 国立国会図書館
Call No.: YCA-I 28.27:9251
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): 000006571372
http://id.ndl.go.jp/bib/000006571372
OCLC No.: 20672546
https://www.worldcat.org/oclc/20672546
Bibliographic Record Category (NDL): 281