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公开(公告)号：US3538990A
公开(公告)日：1970-11-10
申请号：US3538990D
申请日：1967-09-11
Applicant: LEESONA CORP
Inventor： BROUWER CHARLES W , BUGBEE CARLTON N JR , GUERIN DAVID T , TATA RAYMOND V
CPC classification number: B65H67/06 , B65H2701/31
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