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公开(公告)号：US2915205A
公开(公告)日：1959-12-01
申请号：US79275259
申请日：1959-02-12
Applicant: ALEXANDRA STRADER EDWARD
Inventor： ALEXANDRA STRADER EDWARD
CPC classification number: G01F23/003 , B65G47/00 , B65G2814/0344
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