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发明名称
Piston rings
摘要
申请公布号
US3184245(A)
申请公布日期
1965.05.18
申请号
US19610088744
申请日期
1961.02.13
申请人
WELLWORTHY LIMITED
发明人
WOOLCOTT ARTHUR JOHN
分类号
F16J9/06;F16J9/14
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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