Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
2200 Feet down
How vertical pipe line was oxwelded and lowered through mine shaft; longest section which could be handled at head of shaft was 40 ft.
2200 Feet down
How vertical pipe line was oxwelded and lowered through mine shaft; longest section which could be handled at head of shaft was 40 ft.
2200 Feet down
Oxy-Acetylene Tips
1928
3 pages
6 Figs.
Aufsatz (Zeitschrift)
Englisch
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