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发明名称
摘要
申请公布号
JP2775714(B2)
申请公布日期
1998.07.16
申请号
JP19940227343
申请日期
1994.08.29
申请人
MITSUI KENSETSU KK
发明人
OOTSU SHINICHI;USUI TATSUO;SHIMIZU YASUO
分类号
E21D11/00;E21D9/06;G01B11/14;(IPC1-7):E21D9/06
主分类号
E21D11/00
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