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公开(公告)号：US3165862A
公开(公告)日：1965-01-19
申请号：US24372062
申请日：1962-12-11
Applicant: INT PAPER CO
Inventor： HARPER REX S , GENTRY CURTIS A
IPC: A01G13/02
CPC classification number: D21H5/2671 , D21H11/02 , D21H11/04 , D21H25/00 , D21H27/02
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