PROCESS FOR ELIMINATING THE ENVIRONMENT POLLUTING EFFECT OF SPENT ALKALINE COPPER ETCHING AGENTS AND FOR UTILIZING THEIR COPPER CONTENT
SZABO,ANDRAS,HU, EGRI,JANOS,HU, KAPTAS,TIBOR,HU, GROO,RUDOLF,HU, SZABO,ANDRASNE,HU, SZIGETI,GEZA,HU, DULA,BENCENE,HU, NEMETH,JOZSEF,HU, ROMAN,SANDOR,HU
Year of Publication 29.02.1988
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Year of Publication 29.02.1988
Patent