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经营范围
发明名称
A piston ring for internal combustion engine
摘要
申请公布号
KR100593087(B1)
申请公布日期
2006.08.30
申请号
KR19980063108
申请日期
1998.12.31
申请人
发明人
分类号
F02F5/00
主分类号
F02F5/00
代理机构
代理人
主权项
地址
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