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公开(公告)号：US2653669A
公开(公告)日：1953-09-29
申请号：US78478847
申请日：1947-11-08
Applicant: GEN MOTORS CORP
Inventor： MOORE RICHARD E , LAPE EDWARD W , FLAUGH OREN F
CPC classification number: B64C11/303 , B64C11/42
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