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发明名称
DOPED CALCIUM FLUORIDE AND STRONTIUM FLUORIDE PHOTOCHROMIC COMPOSITIONS
摘要
申请公布号
US3684727(A)
申请公布日期
1972.08.15
申请号
USD3684727
申请日期
1969.01.31
申请人
RCA CORP.
发明人
WILLIAM PHILLIPS
分类号
C30B11/00;G03C1/725;(IPC1-7):G02B5/20;F21V9/02
主分类号
C30B11/00
代理机构
代理人
主权项
地址
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