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发明名称
Combination oil ring and piston guide
摘要
申请公布号
US2768041(A)
申请公布日期
1956.10.23
申请号
US19530398083
申请日期
1953.12.14
申请人
SEALED POWER CORPORATION
发明人
OLSON HOLLY M.
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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