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经营范围
发明名称
Corps dispersant la lumière
摘要
申请公布号
BE609919(A1)
申请公布日期
1962.05.03
申请号
BE19610609919
申请日期
1961.11.03
申请人
THE WILLESDEN PAPER AND CANVAS WORKS LIMITED
发明人
C.J. HEALEY
分类号
G02B5/02;G02B5/04
主分类号
G02B5/02
代理机构
代理人
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