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发明名称
PISTON RING DEVICE
摘要
申请公布号
JPH04327063(A)
申请公布日期
1992.11.16
申请号
JP19910119042
申请日期
1991.04.24
申请人
RIKEN CORP
发明人
WADA YOSHIAKI;KASAHARA KOICHIRO
分类号
F16J9/28
主分类号
F16J9/28
代理机构
代理人
主权项
地址
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