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公开(公告)号：US3424303A
公开(公告)日：1969-01-28
申请号：US3424303D
申请日：1967-11-20
Applicant: AUTOMATION DEVICES INC
Inventor： OSOJNAK BORIS M
IPC: G11B23/027 , B65H75/00 , G11B23/02
CPC classification number: G11B23/027 , Y10T24/2145
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