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经营范围
发明名称
(A) ;PHOTO SWITCHING ELEMENT
摘要
申请公布号
JPS53112762(U)
申请公布日期
1978.09.08
申请号
JP19770019210U
申请日期
1977.02.15
申请人
发明人
分类号
G05G1/08;G05G1/00;G12B11/02;H01H37/12;H01H37/52;H01H61/00;H01H61/01;H01H71/16;H03J1/02;(IPC1-7):H01H37/12
主分类号
G05G1/08
代理机构
代理人
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地址
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