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经营范围
发明名称
AN OIL SEALING RING
摘要
申请公布号
EP1001156(A4)
申请公布日期
2001.03.14
申请号
EP19960942239
申请日期
1996.12.19
申请人
YU, XIUMING
发明人
YU, XIUMING
分类号
F02F5/00;F16J9/06;F16J9/20;(IPC1-7):F02F5/00;F16J9/16
主分类号
F02F5/00
代理机构
代理人
主权项
地址
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