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公开(公告)号：US2928965A
公开(公告)日：1960-03-15
申请号：US46560554
申请日：1954-10-27
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： BAYARD ROBERT T , WALKER THOMAS J
IPC: G01T3/00
CPC classification number: G01T3/00
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