Underground mine communications (in four parts). 2. Paging systems.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8743, 1977 Jan; :1-37
This Bureau of Mines report summarizes the research, development, and evaluation demonstrations conducted by the Bureau of Mines under the Coal Mine Health and Safety Actof 1969 to improve the means of notifying miners underground, who are away from their own phone, that they are being called.
Mining-industry; Mining-equipment; Underground-mining
IH; Information Circular
NTIS Accession No.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8743