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公开(公告)号：US2745541A
公开(公告)日：1956-05-15
申请号：US26816052
申请日：1952-01-25
Applicant: GEN MOTORS CORP
Inventor： HOFSTATTER FRANK F
CPC classification number: B65G15/42 , B65G15/32 , B65G15/34 , B65G2201/06
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