5 treff

Mine gases and methods for detecting them
J.J. Forbes and George Wallace Grove
Bok Engelsk 1948
Procedure in sealing and unsealing mine fires and in recovery operations following mine explosions
J.J. Forbes and George Wallace Grove
Bok Engelsk 1948
Protection against mine gases
J.J. Forbes and George Wallace Grove
Bok Engelsk 1948
Suggested procedure for conducting first-aid and mine rescue contests
Grove, George Wallace
Bok Engelsk 1944
Self-contained oxygen breathing apparatus : a handbook for miners
Grove, George Wallace
Bok Engelsk 1941