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经营范围
发明名称
OPTICAL SWITCH
摘要
申请公布号
JPH05165067(A)
申请公布日期
1993.06.29
申请号
JP19910334808
申请日期
1991.12.18
申请人
SUMITOMO ELECTRIC IND LTD
发明人
ITO MASUMI;HOSHINO SUMIO
分类号
G02F1/313
主分类号
G02F1/313
代理机构
代理人
主权项
地址
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