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Get the APPPrinciples of Mining: Valuation, Organization and Administration
Chapter 14 No.14
Word Count: 2649
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Released on: 01/12/2017
Equipment (
AIR VS. ELECTRICITY; AIR DRILLS; MACHINE VS. HA
ill-holes for blasting by Caspar Weindel in Hungary, t
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Principles of Mining: Valuation, Organization and Administration
“Principles of Mining: Valuation, Organization and Administration by Herbert Hoover”