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- 84600372 contributor B4838439.
- 84600372 contributor B4838440.
- 84600372 created "1985.".
- 84600372 date "1985".
- 84600372 date "1985.".
- 84600372 dateCopyrighted "1985.".
- 84600372 description "Bibliography: p. 18.".
- 84600372 extent "25 p. :".
- 84600372 isPartOf "Information circular (United States. Bureau of Mines) ; 9030.".
- 84600372 isPartOf "Information circular ; 9030".
- 84600372 issued "1985".
- 84600372 issued "1985.".
- 84600372 language "eng".
- 84600372 publisher "[Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines,".
- 84600372 subject "622 s 622/.8 19".
- 84600372 subject "Fire detectors.".
- 84600372 subject "Mine fires.".
- 84600372 subject "TN295 .U4 no. 9030 TN315".
- 84600372 title "Design and operation of four prototype fire detection systems in noncoal underground mines / by William H. Pomroy and Robert E. Helmbrecht.".
- 84600372 type "text".