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公开(公告)号:US2557941A
公开(公告)日:1951-06-26
申请号:US60368845
申请日:1945-07-07
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor: CASABONA ANTHONY M
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公开(公告)号:US2477647A
公开(公告)日:1949-08-02
申请号:US57507945
申请日:1945-01-29
Applicant: STANDARD TELEPHONES CABLES LTD
Inventor: PICKLES SIDNEY B , CASABONA ANTHONY M
IPC: H01Q19/04
CPC classification number: H01Q19/04
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