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经营范围
发明名称
PISTON RING
摘要
申请公布号
JPH03255271(A)
申请公布日期
1991.11.14
申请号
JP19900054564
申请日期
1990.03.06
申请人
TEIKOKU PISTON RING CO LTD
发明人
HARAYAMA AKIRA
分类号
F16J9/26;C25D5/14;C25D7/00
主分类号
F16J9/26
代理机构
代理人
主权项
地址
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