Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Radio as a method for underground communication in mines
Discussion of some of the factors involved in applying radio in mines.
Radio as a method for underground communication in mines
Discussion of some of the factors involved in applying radio in mines.
Radio as a method for underground communication in mines
U. S. Bur. Mines -- Reports Investigations
Jakosky, J.J. (Autor:in)
1924
4 pages
Report
Englisch
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