Assignee

JIPANGU INC

JP·1 granted patent·39 citations·filing 1999–1999

Technology mixB03B1 B03C1 C22B1 E02F1 E21C1 Y02P1

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1 record

0166US6138833APlacer gold mining method, placer gold mining boat used in this method, placer gold digging and separating method and system therefor, and placer gold separating method and system thereforJIPANGU INC·Filed 1999·Granted Oct 31, 2000·39 cites·10 claims

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