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公开(公告)号：US2103589A
公开(公告)日：1937-12-28
申请号：US2242935
申请日：1935-05-20
Applicant: LEE ENGINEERING RES CORP
Inventor： ROYAL LEE , EGEDAL LAWRENCE E
IPC: H01H35/10
CPC classification number: H01H35/10 , Y10S388/925
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