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公开(公告)号：US1355180A
公开(公告)日：1920-10-12
申请号：US33871519
申请日：1919-11-17
Applicant: STARKEY DAVID W
Inventor： STARKEY DAVID W
CPC classification number: B65G17/126 , B65G17/32 , B65G2201/04
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