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The implementation of UHF radio communications and CCTV monitoring systems in a room and pillar metal/non-metal mine : final report
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CITE Title : The implementation of UHF radio communications and CCTV monitoring systems in a room and pillar metal/non-metal mine : final report Personal Author(s) : Isberg, R. A.;Kramer, H.;Parrish, D. A; Corporate Authors(s) : Comsul Ltd.;.United States. Bureau of Mines.Pittsburgh Research Center (U.S.); Published Date : March 1981 Series : Open file report (United States. Bureau of Mines) ; 131-81 URL : https://stacks.cdc.gov/view/cdc/9055
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Personal Author:
Isberg, R. A. ;
Kramer, H.
...
March 1981 | Open file report (United States. Bureau of Mines) ; 131-81
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"This report describes the design and implementation of radio and closed-circuit television systems in the Black River room-and-pillar limestone mine ...
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[PDF - 25.66 MB]
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[PDF - 25.66 MB]

Evaluation of communications media in two health projects in Baltimore.
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CITE Title : Evaluation of communications media in two health projects in Baltimore. Personal Author(s) : Gordon, J. Published Date : Jul 1967 Source : Public Health Rep. 82(7):651-655 URL : https://stacks.cdc.gov/view/cdc/74767
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Personal Author:
Gordon, J.
Jul 1967 | Public Health Rep. 82(7):651-655
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[PDF - 1.17 MB]
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[PDF - 1.17 MB]