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公开(公告)号：US2532070A
公开(公告)日：1950-11-28
申请号：US66543646
申请日：1946-04-27
Applicant: ALUMINUM CO OF AMERICA
Inventor： MOORE GEORGE L , SICHA WALTER E , WREGE ROBERT B
IPC: G10C3/04
CPC classification number: G10C3/04
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