61–80 von 449 Ergebnissen
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    Mineral Resources, Geological Structure and Landform Surveys

    M. N. Short / P. D. Lowman | NTIS | 1973
    Schlagwörter: Mineral deposits

    Injury Experience in Coal Mining, 1969

    F. T. Moyer / M. B. McNair | NTIS | 1973
    Schlagwörter: Mineral Industries

    Mineral County Airport, Keyser, West Virginia

    NTIS | 1973
    Schlagwörter: Mineral County Airport

    Design and Development of Protective Canopies for Underground Low Coal Electric Face Equipment, Including Shuttle Cars

    R. Farrar / R. Champney / W. Hermanson et al. | NTIS | 1973
    Schlagwörter: Mineral Industries

    Methodological Plan for Aerial Seismic Studies at Sea and in the Open Ocean

    S. V. Potapev / G. G. Beletskii / I. I. Levin | NTIS | 1974
    Schlagwörter: Mineral Industries

    Standardization of Controls for Underground Electric Face Equipment. Appendix 3. Railed Personnel Carriers

    J. R. Krause / W. G. Hedling | NTIS | 1974
    Schlagwörter: Mineral Industries

    Third Earth Resources Technology Satellite-1 Symposium. Volume 1: Technical Presentations, Section a

    S. C. Freden / E. P. Mercanti / M. A. Becker | NTIS | 1974
    Schlagwörter: Mineral deposits

    Mine Survey and Rescue B Vehicle

    R. L. Cosgriff | NTIS | 1974
    Schlagwörter: Mineral Industries

    Third Earth Resources Technology Satellite-1 Symposium. Volume 1: Technical Presentations, Section B

    S. C. Freden / E. P. Mercanti / M. A. Becker | NTIS | 1974
    Schlagwörter: Mineral deposits

    A Master Environmental Control and Mine System Design Simulator for Underground Coal Mining. Volume VII. Rail Haulage Subsystem

    C. B. Manula / R. A. Rivell / R. L. Sanford | NTIS | 1974
    Schlagwörter: Mineral Industries

    Standardization of Controls for Underground Electric Face Equipment. Appendix 2. Trolley Mine Locomotives

    J. R. Krause / W. G. Hedling | NTIS | 1974
    Schlagwörter: Mineral Industries

    Third Earth Resources Technology Satellite Symposium. Volume 3: Discipline Summary Reports

    S. C. Freden / E. P. Mercanti / D. B. Friedman | NTIS | 1974
    Schlagwörter: Mineral deposits

    Feasibility of Remote Control and Development of Remote Control Devices and Sensors. Shuttle Car Sensor System

    R. L. Fowler / W. C. Troll | NTIS | 1975
    Schlagwörter: Mineral Industries

    Hazard Analysis of Underground Coal Mine Haulage Systems

    H. O. Ankenbruck / S. L. Blackman / H. J. Billmayer et al. | NTIS | 1975
    Schlagwörter: Mineral Industries