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经营范围
发明名称
OPTICAL SWITCH
摘要
申请公布号
JPS5776502(U)
申请公布日期
1982.05.12
申请号
JP19800155060U
申请日期
1980.10.29
申请人
发明人
分类号
A43B3/16;(IPC1-7):A43B3/16
主分类号
A43B3/16
代理机构
代理人
主权项
地址
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