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公开(公告)号：US2016435A
公开(公告)日：1935-10-08
申请号：US51233531
申请日：1931-01-30
Applicant: ALUMINUM CO OF AMERICA
Inventor： BENEDICT ISIDIN
IPC: B60B1/00
CPC classification number: B60B1/00 , Y10S29/035 , Y10T29/49517 , Y10T29/49865
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