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发明名称
摘要
申请公布号
JPH0411412(U)
申请公布日期
1992.01.30
申请号
JP19900052722U
申请日期
1990.05.21
申请人
发明人
分类号
G01C9/00;G01C9/20;G01C15/00;(IPC1-7):G01C9/20
主分类号
G01C9/00
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代理人
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