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公开(公告)号：US3423345A
公开(公告)日：1969-01-21
申请号：US3423345D
申请日：1965-10-11
Applicant: GEN DYNAMICS CORP
Inventor： HSU HOWARD L , FRESNE EUGENE R DU
CPC classification number: C08G59/18 , C08G59/4057 , C08G59/44
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