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公开(公告)号：US1708559A
公开(公告)日：1929-04-09
申请号：US17801127
申请日：1927-03-24
Applicant: ATKINS GEORGE S
Inventor： ATKINS GEORGE S
CPC classification number: B65G17/38 , B65G17/12 , B65G2201/06
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