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公开(公告)号：US1354493A
公开(公告)日：1920-10-05
申请号：US28668319
申请日：1919-04-01
Applicant: GEORGE KENNECK
Inventor： GEORGE KENNECK
IPC: B65G15/42
CPC classification number: B65G15/42 , B65G2201/04
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