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公开(公告)号：US3380586A
公开(公告)日：1968-04-30
申请号：US49651765
申请日：1965-10-15
Applicant: MANDREL INDUSTRIES
Inventor： FROBESE CHARLES W , WAMBECK STANLEY H VAN
CPC classification number: B07C5/361 , B07C5/365 , B65G47/503
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