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公开(公告)号：US2142003A
公开(公告)日：1938-12-27
申请号：US18144437
申请日：1937-12-23
Applicant: KONRAD MORGELIN
Inventor： KONRAD MORGELIN
IPC: B65G17/38
CPC classification number: B65G17/38 , B65G2201/06
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