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公开(公告)号：US3479862A
公开(公告)日：1969-11-25
申请号：US3479862D
申请日：1967-03-24
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： TRAPP ORLIN D , CANNON DON L
IPC: G01R31/26 , G01R31/316 , G01M3/34
CPC classification number: G01R31/2644 , G01R31/2637 , G01R31/316
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