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发明名称
PHOTOCHROMIC SPIROPYRAN COMPOUNDS
摘要
申请公布号
GB8711511(D0)
申请公布日期
1987.06.17
申请号
GB19870011511
申请日期
1987.05.15
申请人
PLESSEY CO PLC
发明人
分类号
C07D311/96;C07D491/107;C08K5/1545;C09K9/02
主分类号
C07D311/96
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代理人
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