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公开(公告)号：US2748877A
公开(公告)日：1956-06-05
申请号：US27683652
申请日：1952-03-15
Applicant: GEN MOTORS CORP
Inventor： MILLER DALE W , COVERT CALVIN C , ROYER DARRELL E , MICHAEL DEMIDO
IPC: B64C11/42
CPC classification number: B64C11/42
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