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发明名称
BALLAST REMOVING DEVICE
摘要
申请公布号
JPH08199501(A)
申请公布日期
1996.08.06
申请号
JP19950031780
申请日期
1995.01.30
申请人
MITSUBISHI HEAVY IND LTD
发明人
HIRUKAWA AKIRA
分类号
E01B27/10;(IPC1-7):E01B27/10
主分类号
E01B27/10
代理机构
代理人
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地址
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