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公开(公告)号:US3504733A
公开(公告)日:1970-04-07
申请号:US3504733D
申请日:1966-05-02
Applicant: DRESSER IND
Inventor: SMITH LOREN W
CPC classification number: B22D17/10
公开(公告)号:US3504733A
公开(公告)日:1970-04-07
申请号:US3504733D
申请日:1966-05-02
Applicant: DRESSER IND
Inventor: SMITH LOREN W
CPC classification number: B22D17/10