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经营范围
发明名称
OPTICAL FREQUENCY COUNTER
摘要
申请公布号
JPH04118533(A)
申请公布日期
1992.04.20
申请号
JP19900239582
申请日期
1990.09.10
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
SAKAI YOSHIHISA;SUDO SHOICHI
分类号
G01J9/00
主分类号
G01J9/00
代理机构
代理人
主权项
地址
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