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发明名称
OPTICAL ELEMENT AND ITS PRODUCTION
摘要
申请公布号
JPH06308471(A)
申请公布日期
1994.11.04
申请号
JP19930296287
申请日期
1993.11.26
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
TANAKA KEIJI;TSURU SHINJI;KATO KINYA;SAKAI SHIGENOBU
分类号
G02F1/13;G02F1/1333;G02F1/1334;(IPC1-7):G02F1/133
主分类号
G02F1/13
代理机构
代理人
主权项
地址
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