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公开(公告)号：US3485465A
公开(公告)日：1969-12-23
申请号：US3485465D
申请日：1967-11-21
Applicant: GEN DYNAMICS CORP
Inventor： CHURCHILL ROBERT C
CPC classification number: B64C25/10 , B64C25/16 , B64C25/42 , B64C2025/125
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