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发明名称
摘要
申请公布号
JPS6415912(U)
申请公布日期
1989.01.26
申请号
JP19870107218U
申请日期
1987.07.13
申请人
发明人
分类号
G01C21/00;(IPC1-7):G01C21/00
主分类号
G01C21/00
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代理人
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