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Underground mine communications (in four parts). 2. Paging systems.

Authors
USBM
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8743, 1977 Jan; :1-37
NIOSHTIC No.
10001367
Abstract
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.
Keywords
Mining-industry; Mining-equipment; Underground-mining
Publication Date
19770101
Document Type
IH; Information Circular
Fiscal Year
1977
NTIS Accession No.
PB-270026
NTIS Price
A04
Identifying No.
IC-8743
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8743
State
PA
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