ZA762855B - Process and apparatus for conveying large particle mined coal,oil shale,ore etc.from underground mines or from strip mines via a pipeline
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Process and apparatus for conveying large particle mined coal,oil shale,ore etc.from underground mines or from strip mines via a pipeline
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ZA00762855A1976-05-131976-05-13Process and apparatus for conveying large particle mined coal,oil shale,ore etc.from underground mines or from strip mines via a pipeline
ZA762855B
(en)