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发明名称
摘要
申请公布号
JPS5854454(U)
申请公布日期
1983.04.13
申请号
JP19810147160U
申请日期
1981.10.05
申请人
发明人
分类号
G01D7/00;E02F3/28;(IPC1-7):E02F3/28
主分类号
G01D7/00
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