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发明名称
摘要
申请公布号
NL6408414(A)
申请公布日期
1966.01.24
申请号
NL19640008414
申请日期
1964.07.23
申请人
发明人
分类号
C03B23/22;G02C7/06
主分类号
C03B23/22
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地址
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