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发明名称
APPARATUS FOR MAINTAINING BALANCE OF A ROTATION RING IN A CRANE
摘要
申请公布号
KR100797277(B1)
申请公布日期
2008.01.23
申请号
KR20010082118
申请日期
2001.12.20
申请人
发明人
分类号
B66C23/72;(IPC1-7):B66C23/72
主分类号
B66C23/72
代理机构
代理人
主权项
地址
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