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公开(公告)号：US2878898A
公开(公告)日：1959-03-24
申请号：US39931253
申请日：1953-12-21
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： KRAFT JOSEPH K , RISSIER LENNIUS R
IPC: B66B13/26
CPC classification number: B66B13/26
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