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公开(公告)号：US2424999A
公开(公告)日：1947-08-05
申请号：US47901243
申请日：1943-03-13
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor： MANUEL OSTLUND EVERT , SOKOLOFF PAUL W
IPC: H03K3/37
CPC classification number: H03K3/37
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