Assignee

COLUMBIA VENTURES CORP

US·1 granted patent·154 citations·filing 1992–1992

Technology mixA62D1 C01B1 C03B1 C03C1 C04B1 F23G1

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1 record

0181US5222448APlasma torch furnace processing of spent potliner from aluminum smeltersCOLUMBIA VENTURES CORP·Filed 1992·Granted Jun 29, 1993·154 cites·24 claims

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