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发明名称
DIHYDROPYRENES AND PHOTOCHROMIC COMPOSITIONS BASED THEREON
摘要
申请公布号
CA792790(A)
申请公布日期
1968.08.20
申请号
CAD792790
申请日期
申请人
GEIGY CHEMICAL CORPORATION
发明人
JOHN A. GURNEY;LUTHER A. R. HALL
分类号
主分类号
代理机构
代理人
主权项
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