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经营范围
发明名称
SEMICONDUCTOR RING LASER
摘要
申请公布号
JPH0340480(A)
申请公布日期
1991.02.21
申请号
JP19890176047
申请日期
1989.07.07
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
IKEDA MASAHIRO;KAWAKAMI GOJI;KURUMADA KATSUHIKO
分类号
H01S5/00
主分类号
H01S5/00
代理机构
代理人
主权项
地址
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