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发明名称
PISTON RING ASSEMBLY
摘要
申请公布号
US3447811(A)
申请公布日期
1969.06.03
申请号
USD3447811
申请日期
1966.08.12
申请人
MCQUAY NORRIS MFG. CO.
发明人
GEORGE C. MAYFIELD
分类号
F16J9/06;F16J9/20;(IPC1-7):F16J9/20
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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