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公开(公告)号：US2215785A
公开(公告)日：1940-09-24
申请号：US16227837
申请日：1937-09-03
Applicant: INT STANDARD ELECTRIC CORP
Inventor： CHARLES GALLANT LOUIS , CAMILLE NOUVELLON
IPC: G01S1/02
CPC classification number: G01S1/02
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