Publication

1987 - U.S. Dept. of the Interior, Bureau of Mines, Pittsburgh, Pa, Pennsylvania

Language

English

Word Count

5,000 words, Guess

Page Count

20 pages

Identifiers

Classifications

  • DDC622 s
  • DDC622/.334
  • LCCTN23 .U43 no. 9144
and 1 more
  • LCCTN288 .U43 no. 9144

Alternate Titles

  • Shield mechanics.

Subjects

Topics

TestingLongwall miningMine roof controlMine roof control -- Testing

Series Statement

  • Report of investigations ;
  • 9144
  • Report of investigations (United States. Bureau of Mines) ;

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