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公开(公告)号：US3424359A
公开(公告)日：1969-01-28
申请号：US3424359D
申请日：1967-07-17
Applicant: LEESONA CORP
Inventor： HOULE ROLAND O , RICHTER HANS H
CPC classification number: B65H54/71 , B65H2701/31
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