A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cribbing, forepoling under soft roof, timbering high places, inclined seams and using round, notched timber. (See also - no. 4, Apr. 1919, pp. 138-141)
Cribbing, forepoling under soft roof, timbering high places, inclined seams and using round, notched timber. (See also - no. 4, Apr. 1919, pp. 138-141)
Safe and efficient mine timbering
Coal Indus
Virgin, R.Z. (author)
Coal Industry ; 2
1919
3 pages
7 Figs.
Article (Journal)
English
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