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公开(公告)号：US3477838A
公开(公告)日：1969-11-11
申请号：US3477838D
申请日：1966-06-10
Applicant: GLAVERBEL
Inventor： HENRY GEORGES , BRICHARD EDGARD , MARCHAND JEAN , BAUDUIN ALBERT
CPC classification number: C03B15/02
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