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公开(公告)号：US3364019A
公开(公告)日：1968-01-16
申请号：US42920465
申请日：1965-01-21
Applicant: LEESONA CORP
Inventor： HOUGHTBY WILLIAM E , DAVID JOSEPH A
CPC classification number: H01M4/8875 , B22F7/002 , H01M4/8882 , H01M4/8896
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