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公开(公告)号：US1795883A
公开(公告)日：1931-03-10
申请号：US6567525
申请日：1925-10-29
Applicant: ORELUP JOHN W , IVAN LEE OSCAR
Inventor： ORELUP JOHN W , IVAN LEE OSCAR
IPC: C09K5/20
CPC classification number: C09K5/20
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