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发明名称
PERFECTIONNEMENT AU VERRE PHOTOCHROMIQUE
摘要
申请公布号
BE854793(A1)
申请公布日期
1977.09.16
申请号
BE19770177702
申请日期
1977.05.18
申请人
JOHNSON MATTHEY & CO. LTD
发明人
P.M. WELCH
分类号
C03C4/06;(IPC1-7):C03C/
主分类号
C03C4/06
代理机构
代理人
主权项
地址
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