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RECOVERY OF COPPER VALUES FROM COPPER-CONTAINING ORES
US 3,441,403 A
Filed
: 06/08/1966
Issued
: 04/29/1969
Est. Priority Date
: 06/08/1966
Status: Expired due to Term
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Current Assignee
Albert E. Erhard
,
Robert E. Fredrickson
Original Assignee
Albert E. Erhard
,
Robert E. Fredrickson
Inventors
Fredrickson, Robert E.
,
Erhard, Albert E.
Application Number
US04/555,988
Time in Patent Office
1,056 Days
Field of Search
US Class Current
423/45
CPC Class Codes
C22B 15/0017
Sulfating or sulfiding roas...
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