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发明名称
摘要
申请公布号
JPS6133119(B2)
申请公布日期
1986.07.31
申请号
JP19810098184
申请日期
1981.06.26
申请人
KOMATSU MFG CO LTD
发明人
YAMAZAKI TOSHIHIRO;AOKI HIDEKAZU
分类号
E21D9/087;E21D9/08;F15B11/02
主分类号
E21D9/087
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代理人
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