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公开(公告)号：US2978841A
公开(公告)日：1961-04-11
申请号：US85868559
申请日：1959-12-10
Applicant: STANRAY CORP
Inventor： MILLER ROY W
IPC: B61D39/00
CPC classification number: B61D39/00 , Y10S206/821
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