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发明名称
摘要
申请公布号
JPH0653988(U)
申请公布日期
1994.07.22
申请号
JP19920088754U
申请日期
1992.12.25
申请人
发明人
分类号
G04B19/12;(IPC1-7):G04B19/12
主分类号
G04B19/12
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