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公开(公告)号：US3284607A
公开(公告)日：1966-11-08
申请号：US83888759
申请日：1959-09-09
Applicant: MARTIN MARIETTA CORP
Inventor： WERNZ GEORGIA N , DOLAN HARRIS M , GAYDOS JOSEPH A
CPC classification number: B23K1/0014 , B23K1/008 , B23K2201/02
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