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发明名称
PISTON RINGS
摘要
申请公布号
CA478017(A)
申请公布日期
1951.10.23
申请号
CAD478017
申请日期
申请人
MCQUAY-NORRIS MANUFACTURING COMPANY
发明人
DALLAS M. SMITH
分类号
主分类号
代理机构
代理人
主权项
地址
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