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公开(公告)号：US2858395A
公开(公告)日：1958-10-28
申请号：US60600956
申请日：1956-08-24
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ROBERT HARM ALSON , OGG ALVIN W , NIEBAUER KENNETH L
IPC: H01H75/04
CPC classification number: H01H75/04
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