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发明名称
摘要
申请公布号
JPS56168561(U)
申请公布日期
1981.12.12
申请号
JP19800063837U
申请日期
1980.05.12
申请人
发明人
分类号
E03B9/10;E03B7/07;E03B9/12;G01F15/00;G01F15/14;(IPC1-7):E03B9/12
主分类号
E03B9/10
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