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发明名称
摘要
申请公布号
FR2098835(A5)
申请公布日期
1972.03.10
申请号
FR19700027897
申请日期
1970.07.29
申请人
NIPPON PISTON RING KK
发明人
分类号
F16J9/26;(IPC1-7):F16J9/00
主分类号
F16J9/26
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