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公开(公告)号：US2529168A
公开(公告)日：1950-11-07
申请号：US5350648
申请日：1948-10-08
Applicant: MICHIANA PRODUCTS CORP
Inventor： MARSHALL JOSEPH K , CARL NYGREN
CPC classification number: B65G17/38 , B65G17/40 , B65G2201/06
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