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公开(公告)号：US2244230A
公开(公告)日：1941-06-03
申请号：US26138439
申请日：1939-03-11
Applicant: TELEFUNKEN GMBH
Inventor： ROBERT ANDRIEU , HEINRICH BRANDLE
IPC: H04N5/12
CPC classification number: H04N5/123
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