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A second-generation remote optical methanometer [microform] / Robert A. Franks ... [et al.] (Report of investigations ; 9640)

A second-generation remote optical methanometer [microform] / Robert A. Franks ... [et al.] (Report of investigations ; 9640)
マイクロ図書
1997<YCA-HE 20.7130:9640>
国立国会図書館
  • 著者標目Franks, Robert A Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Effect of mining height on injury rates in U.S. underground nonlongwall bituminous coal mines [microform] / By Barbara Fotta and Launa G. Mallett (Information circular ; 9447)

Effect of mining height on injury rates in U.S. underground nonlongwall bituminous coal mines [microform] / By Barbara Fotta and Launa G. Mallett (Information circular ; 9447)
マイクロ図書
1997<YCA-HE 20.7130:9447>
国立国会図書館
  • 著者標目...llett, Launa G Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Distinguishing motor starts from short circuits through phase-angle measurements [microform] / Michael R. Yenchek ... [et al.] (Report of investigations, 9638)

Distinguishing motor starts from short circuits through phase-angle measurements [microform] / Michael R. Yenchek ... [et al.] (Report of investigations, 9638)
マイクロ図書
1997<YCA-HE 20.7131:9638>
国立国会図書館
  • 著者標目Yenchek, M. R. (Michael R.) Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Detection of downed trolley lines using arc signature analysis [microform] / Jeffrey Shawn Peterson and Gregory P. Cole (Report of investigations ; 9639)

Detection of downed trolley lines using arc signature analysis [microform] / Jeffrey Shawn Peterson and Gregory P. Cole (Report of investigations ; 9639)
マイクロ図書
1997<YCA-HE 20.7130:9639>
国立国会図書館
  • 著者標目...ole, Gregory P Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Evaluation of a signaling and warning system for underground mines [microform] / Ronald S. Conti and Robert G. Yewen (Report of investigations ; 9641)

Evaluation of a signaling and warning system for underground mines [microform] / Ronald S. Conti and Robert G. Yewen (Report of investigations ; 9641)
マイクロ図書
1997<YCA-HE 20.7130:9641>
国立国会図書館
  • 著者標目...ewen, Robert G Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Proceedings, new technology for ground control in retreat mining [microform] / Christopher Mark and Robert J. Tuchman (Information circular ; 9446)

Proceedings, new technology for ground control in retreat mining [microform] / Christopher Mark and Robert J. Tuchman (Information circular ; 9446)
マイクロ図書
1997<YCA-HE 20.7130:9446>
国立国会図書館
  • 著者標目...hman, Robert J Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health) Spokane Research Center (Unit...

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