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公开(公告)号：US3471287A
公开(公告)日：1969-10-07
申请号：US3471287D
申请日：1966-06-29
Applicant: LEESONA CORP
Inventor： ROBERTS FRANK JR
CPC classification number: H01M4/9041 , B22F7/002 , H01M4/8885 , H01M4/8889 , H01M4/8896
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