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经营范围
发明名称
PARALLEL OPTICAL SWITCH
摘要
申请公布号
JPH04184426(A)
申请公布日期
1992.07.01
申请号
JP19900315476
申请日期
1990.11.20
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
YAMAGUCHI MASAYASU;MATSUNAGA TORU
分类号
G02F1/31
主分类号
G02F1/31
代理机构
代理人
主权项
地址
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