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经营范围
发明名称
POLARIZER
摘要
申请公布号
JPH02230203(A)
申请公布日期
1990.09.12
申请号
JP19890050024
申请日期
1989.03.03
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
UNO TAKEHIKO
分类号
G02B5/30;C30B29/10
主分类号
G02B5/30
代理机构
代理人
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