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公开(公告)号：US1764864A
公开(公告)日：1930-06-17
申请号：US21031227
申请日：1927-08-03
Applicant: ALUMINUM CO OF AMERICA
Inventor： FRANCK ANDERSEN ELI , SHARP JOHN E
IPC: B65D41/42
CPC classification number: B65D41/42
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