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Change houses in lake superior district
Detailed information as to recently constructed change houses at four mines; present tendency is to house all surface equipment, offices, and warehouses in one building; in such instances, plant inside and outside showed excellent housekeeping.
Change houses in lake superior district
Detailed information as to recently constructed change houses at four mines; present tendency is to house all surface equipment, offices, and warehouses in one building; in such instances, plant inside and outside showed excellent housekeeping.
Change houses in lake superior district
U S Bur Mines -- Information Cir
Cash, F.E. (Autor:in) / Stott, R.G. (Autor:in)
1949
26 pages
Supp plates
Report
Englisch
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