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发明名称
Oil ring
摘要
申请公布号
US2554069(A)
申请公布日期
1951.05.22
申请号
US19470736785
申请日期
1947.03.24
申请人
STANLEY GORDON W
发明人
STANLEY GORDON W.
分类号
F16J9/06;F16J9/20
主分类号
F16J9/06
代理机构
代理人
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地址
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