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1.发明授权
公开(公告)号：US3453149A
公开(公告)日：1969-07-01
申请号：US3453149D
申请日：1965-10-01
Applicant: ENGELHARD IND INC
Inventor： ADLHART OTTO J , HALPERN MODECAI J , SHIELDS HUGH A
CPC classification number: H01M8/08
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