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A modern type of mine tunneling machine
Illustrated description of a reciprocating cutter head tunneling machine. (3000 w.) (No. 91800)
A modern type of mine tunneling machine
Illustrated description of a reciprocating cutter head tunneling machine. (3000 w.) (No. 91800)
A modern type of mine tunneling machine
Min Wld
Knowles, Silas A. (Autor:in) / Carr, Walter E. (Autor:in)
1908
Aufsatz (Zeitschrift)
Englisch
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