Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mucking costs below mining costs
How tunneling costs were reduced by equipment designed by city engineers on part of force-account tunnel job in Chicago; other methods used on work.
Mucking costs below mining costs
How tunneling costs were reduced by equipment designed by city engineers on part of force-account tunnel job in Chicago; other methods used on work.
Mucking costs below mining costs
Eng. Contracting
1927
10 pages
21 Figs.
Aufsatz (Zeitschrift)
Englisch
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