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公开(公告)号：US2891470A
公开(公告)日：1959-06-23
申请号：US61779156
申请日：1956-10-23
Applicant: IDEAL ROLLER AND MFG COMPANY
Inventor： ROWE NORMAN L , GUSTAVE REISCHL
IPC: B41N7/04
CPC classification number: B41N7/04 , B41N2207/02 , B41N2207/14
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