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公开(公告)号：US3147851A
公开(公告)日：1964-09-08
申请号：US15959361
申请日：1961-12-15
Applicant: WERNER DIETRICH
Inventor： WERNER DIETRICH
IPC: B65G15/42
CPC classification number: B65G15/42 , B65G2201/04
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