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Methods and costs of sinking silver summit shaft, Wallace, Idaho, using mechanical mucking machine
Use of "Riddell Shaft Mucker," as described by senior author in article indexed in Engineering Index 1947 p 1054, from Min Congress J Nov 1946.
Methods and costs of sinking silver summit shaft, Wallace, Idaho, using mechanical mucking machine
Use of "Riddell Shaft Mucker," as described by senior author in article indexed in Engineering Index 1947 p 1054, from Min Congress J Nov 1946.
Methods and costs of sinking silver summit shaft, Wallace, Idaho, using mechanical mucking machine
U S Bur Mines -- Information Cir
Grismer, G.M. (author) / Hundhausen, R.J. (author)
1948
12 pages
Supp plates
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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