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公开(公告)号：US3274839A
公开(公告)日：1966-09-27
申请号：US36939764
申请日：1964-05-22
Applicant: GEN DYNAMICS CORP
Inventor： SATHER STANLEY L
CPC classification number: H01H3/122 , F41A19/64 , Y10T74/1892
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