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Jeffrey H Welsh

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1) Suggested minimum performance specifications for underground coal mine environmental monitoring systems

Author

Welsh, Jeffrey H

Series

Information circular volume 9157

Publisher

U.S. Dept. of the Interior, Bureau of Mines

Pub. Date

1987

Language

English

2) Computerized, remote monitoring systems for underground coal mines: faults in power systems

Author

Welsh, Jeffrey H

Series

Information circular volume 8944

Publisher

U.S. Dept. of the Interior, Bureau of Mines

Pub. Date

1983

Language

English

3) Computerized, remote monitoring systems for underground coal mines: fires and explosive atmospheres

Author

Welsh, Jeffrey H

Series

Information circular volume 8875

Publisher

U.S. Dept. of the Interior, Bureau of Mines

Pub. Date

[1982?]

Language

English