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发明名称
摘要
申请公布号
DE3723430(C2)
申请公布日期
1990.08.09
申请号
DE19873723430
申请日期
1987.07.15
申请人
NIPPON PISTON RING CO., LTD., TOKIO/TOKYO, JP
发明人
KOOROKI, TAKEO, TOKIO/TOKYO, JP
分类号
F02F5/00;F16J9/06
主分类号
F02F5/00
代理机构
代理人
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