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公开(公告)号：US2244845A
公开(公告)日：1941-06-10
申请号：US22216238
申请日：1938-07-30
Applicant: RAYBESTES MANHATTAN INC
Inventor： MATTHEWS JOHN H
CPC classification number: B65G15/54 , B65G15/08 , B65G15/34 , B65G2201/06 , Y10T428/24636
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