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公开(公告)号:US1330164A
公开(公告)日:1920-02-10
申请号:US21313218
申请日:1918-01-22
Applicant: ALUMINUM CO OF AMERICA
Inventor: BROADWELL BARTLEY E
IPC: F27B13/02
CPC classification number: F27B13/02
公开(公告)号:US1330164A
公开(公告)日:1920-02-10
申请号:US21313218
申请日:1918-01-22
Applicant: ALUMINUM CO OF AMERICA
Inventor: BROADWELL BARTLEY E
IPC: F27B13/02
CPC classification number: F27B13/02