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Electric shot-firing in mines, quarries, and tunnels

Electric shot-firing in mines, quarries, and tunnels
Paper図書
by L. C. Ilsley, A. B. HookerGovernment Printing Office1926
Other Libraries in Japan
  • Author HeadingIlsley, Lee Clyde Hooker, Alva Britt

Flame safety lamps

Flame safety lamps
Paper図書
J. W. Paul, L. C. Ilsley, E. J. GleimGovernment Printing Office1924
Other Libraries in Japan
  • Author HeadingPaul, James Washington Gleim, Ernest J. Ilsley, Lee Clyde

Ignition of mine gases by the filaments of incandescent lamps

Ignition of mine gases by the filaments of incandescent lamps
Paper図書
by H.H. Clark and L.C. IlsleyG.P.O.1913
Other Libraries in Japan
  • Author HeadingClark, H. H. (Harold Hayward) Ilsley, Lee Clyde

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