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The most rational method of timbering inclined workings
A comparison between the advantages of vertical posts and inclined struts in timbering sloping mine workings. (1200 w.)
The most rational method of timbering inclined workings
A comparison between the advantages of vertical posts and inclined struts in timbering sloping mine workings. (1200 w.)
The most rational method of timbering inclined workings
Welche Abbaumethode ist fur Steile Gange die Rationellste
Mla´ (author) / dek, Franz (author)
1904
Article (Journal)
German
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