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公开(公告)号:US3443412A
公开(公告)日:1969-05-13
申请号:US3443412D
申请日:1967-05-17
Applicant: NASA , WEBB JAMES E
Inventor: MICHEL RAYMOND E , NELSON DALLAS E
CPC classification number: B21D13/02
公开(公告)号:US3443412A
公开(公告)日:1969-05-13
申请号:US3443412D
申请日:1967-05-17
Applicant: NASA , WEBB JAMES E
Inventor: MICHEL RAYMOND E , NELSON DALLAS E
CPC classification number: B21D13/02