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公开(公告)号：US3448450A
公开(公告)日：1969-06-03
申请号：US3448450D
申请日：1967-08-29
Applicant: THOMSON HOUSTON COMP FRANCAISE
Inventor： ALFANDARI ROGER , DAVEAU BERNARD
CPC classification number: G01S13/02 , G01S13/424 , H01Q3/00 , H01Q3/34 , H01Q25/00
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