Jump to main content

yr 〜
yr

Search results 5

Barrier pillars in Wyoming Basin, northern field : anthracite region of Pennsylvania / by S.H. Ash. (Bulletin)

Barrier pillars in Wyoming Basin, northern field : anthracite region of Pennsylvania / by S.H. Ash. (Bulletin)
Paper図書
U.S. G.P.O.1954.<622.56-A819by>
National Diet Library
  • Subject HeadingBarrier pillars. Anthracite coal -- Pennsylvan...

Barrier pillars in the Southern field : anthracite region of Pennsylvania / by S.H. Ash and H.D. Kynor. (Bulletin)

Barrier pillars in the Southern field : anthracite region of Pennsylvania / by S.H. Ash and H.D. Kynor. (Bulletin)
Paper図書
U.S. G.P.O.1953.<622.56-A819bs>
National Diet Library
  • Subject HeadingBarrier pillars. Anthracite coal -- Pennsylvan...

Влияние масштабного фактора на прочность углей

Влияние масштабного фактора на прочность углей
Paper図書
С.Е. ЧирковИзд-во "Недра"1969
Other Libraries in Japan

Barrier pillars in the western middle field : anthracite region of Pennsylvania / by S.H. Ash ... [et al.]. (Bulletin)

Barrier pillars in the western middle field : anthracite region of Pennsylvania / by S.H. Ash ... [et al.]. (Bulletin)
Paper図書
U.S. G.P.O.1953.<622.56-A819bw>
National Diet Library
  • Subject HeadingMine water. Barrier pillars. Coal mines and mining.

Barrier pillars in Lackawanna Basin, northern field : anthracite region of Pennsylvania / by S.H. Ash ... [et al.]. (Bulletin)

Barrier pillars in Lackawanna Basin, northern field : anthracite region of Pennsylvania / by S.H. Ash ... [et al.]. (Bulletin)
Paper図書
U.S. G.P.O.1952.<622.56-A819b>
National Diet Library
  • Subject HeadingBarrier pillars. Anthracite coal -- Pennsylvan...

Reached to the end of result.

RSS