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发明名称
INDOLINO-SPIRO-OXAZINE PHOTOCHROMIC COMPOUNDS HAVING A FIVE-MEMBERED RING, PROCESS FOR THEIR PREPARATION AND PHOTOCHROMIC COMPOSITIONS AND MATERIALS CONTAINING THEM
摘要
申请公布号
EP0402228(A3)
申请公布日期
1991.10.09
申请号
EP19900401507
申请日期
1990.06.05
申请人
ESSILOR INTERNATIONAL, CIE GENERALE D'OPTIQUE
发明人
GUGLIELMETTI, ROBERT;TARDIEU, PASCALE
分类号
C07D498/20;C07D513/20;C09K9/02;G03C1/685;(IPC1-7):C07D498/20
主分类号
C07D498/20
代理机构
代理人
主权项
地址
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