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经营范围
发明名称
PRESSURE RING
摘要
申请公布号
JPH06281006(A)
申请公布日期
1994.10.07
申请号
JP19930072433
申请日期
1993.03.30
申请人
NIPPON PISTON RING CO LTD
发明人
ITO MITSUO
分类号
F02F5/00;F16J9/16;(IPC1-7):F16J9/16
主分类号
F02F5/00
代理机构
代理人
主权项
地址
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