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公开(公告)号：US2454219A
公开(公告)日：1948-11-16
申请号：US66536046
申请日：1946-04-27
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： SCHULTZ MORTIMER A , BERTINE GLADYS L
IPC: G01S7/40
CPC classification number: G01S7/40 , G01S2007/4082
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