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发明名称
摘要
申请公布号
JPH02149992(U)
申请公布日期
1990.12.21
申请号
JP19890060134U
申请日期
1989.05.24
申请人
发明人
分类号
G10B3/12;G10H1/34;(IPC1-7):G10B3/12
主分类号
G10B3/12
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代理人
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