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公开(公告)号：US3504825A
公开(公告)日：1970-04-07
申请号：US3504825D
申请日：1966-08-15
Applicant: GEN MOTORS CORP
Inventor： DIAMOND MILTON J , KINSEY ROBERT J
CPC classification number: B22D39/06
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公开(公告)号：US3396870A
公开(公告)日：1968-08-13
申请号：US60672567
申请日：1967-01-03
Applicant: GEN MOTORS CORP
Inventor： DIAMOND MILTON J , KINSEY ROBERT J
IPC: B22D39/06 , G01F23/288
CPC classification number: B22D39/06 , G01F23/288
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