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公开(公告)号：US2868967A
公开(公告)日：1959-01-13
申请号：US59162956
申请日：1956-06-15
Applicant: ADMIRAL CORP
Inventor： ROCCO POPPA , HOELLERICH JOHN L
IPC: H03J5/14
CPC classification number: H03J5/146
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