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公开(公告)号:CA372734A
公开(公告)日:1938-03-29
申请号:CA372734D
Applicant: ALUMINIUM LTD , ALUMINUM CO OF AMERICA
Inventor: JARDINE FRANK
公开(公告)号:CA372734A
公开(公告)日:1938-03-29
申请号:CA372734D
Applicant: ALUMINIUM LTD , ALUMINUM CO OF AMERICA
Inventor: JARDINE FRANK