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发明名称
摘要
申请公布号
JPS604986(U)
申请公布日期
1985.01.14
申请号
JP19830097201U
申请日期
1983.06.23
申请人
发明人
分类号
G04B39/02;(IPC1-7):G04B39/02
主分类号
G04B39/02
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代理人
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地址
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