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公开(公告)号：US3292354A
公开(公告)日：1966-12-20
申请号：US44948765
申请日：1965-04-20
Applicant: LEESONA CORP
Inventor： CHALFANT FREDERIC E , PERKINS GUY E
CPC classification number: H05B3/0095 , D02G1/02 , D02G1/0266
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