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公开(公告)号：US3502191A
公开(公告)日：1970-03-24
申请号：US3502191D
申请日：1967-11-07
Applicant: VALO ANTTI T
Inventor： VALO ANTTI
CPC classification number: B65G47/82 , B65G2201/02 , B65G2201/0282 , Y10T83/647
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