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公开(公告)号：US2106344A
公开(公告)日：1938-01-25
申请号：US8064436
申请日：1936-05-19
Applicant: BELL TELEPHONE LABOR INC
Inventor： FLEGAL JOHN R , PRIESSMAN NEIL Y
IPC: H01L25/07
CPC classification number: H01L25/073 , H01L2924/0002 , H01L2924/00
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