A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design developments described and illustrated; advantages and disadvantages of head gears.
Design developments described and illustrated; advantages and disadvantages of head gears.
Modern head frames in coal mines
Neuzeitliche Foerdergeruests
Pruess, H. (author)
Stahlbau ; 25
1956
8 pages
Article (Journal)
German
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