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Your search for [subject]Gold mines and mining -- Technological innovations returned 2 records. |
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MIRDC gets registered utility model.
Subject: Gold mines and mining -- Technological innovations; Coconut -- Technological innovations.
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Prototype development cum testing of mercury retort for the Philippine small scale gold-mining industry.
by Peralta, Maria Gracia M.;
Subject: Gold mines and mining -- Technological innovations.
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