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发明名称
COUNTERWEIGHT
摘要
申请公布号
JPH04120322(A)
申请公布日期
1992.04.21
申请号
JP19900239673
申请日期
1990.09.10
申请人
HITACHI CONSTR MACH CO LTD
发明人
KUNITOKI YOSHIO;KANEKO ZENJI
分类号
E02F9/18;B66C23/74
主分类号
E02F9/18
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代理人
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