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公开(公告)号：US1487125A
公开(公告)日：1924-03-18
申请号：US52687122
申请日：1922-01-04
Applicant: ROBERT STACK JAMES
Inventor： ROBERT STACK JAMES
CPC classification number: C22B25/06 , C22B30/06 , C25C1/14 , Y02P10/228
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