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公开(公告)号：US2636697A
公开(公告)日：1953-04-28
申请号：US23075651
申请日：1951-06-09
Applicant: LEIGH DENNY REGINALD
Inventor： LEIGH DENNY REGINALD
CPC classification number: B64C39/024 , B64C2201/104 , B64C2201/127 , B64C2201/146 , B64C2201/185 , F42B4/26 , F42B10/56
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