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发明名称
PREVENTER FOR NATURAL SHRINKAGE OF BACK STAY CYLINDER IN PILE DRIVER
摘要
申请公布号
JPS5785424(A)
申请公布日期
1982.05.28
申请号
JP19800160974
申请日期
1980.11.14
申请人
HITACHI KENKI KK
发明人
MIYAZAKI RIYOUJI
分类号
E02D7/16
主分类号
E02D7/16
代理机构
代理人
主权项
地址
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