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发明名称
Piston ring
摘要
申请公布号
US2577022(A)
申请公布日期
1951.12.04
申请号
US19460672200
申请日期
1946.05.25
申请人
SULZER FRERES, SOCIETE ANONYME
发明人
LIEBERHERR HANS
分类号
F02F3/00;F16J9/20
主分类号
F02F3/00
代理机构
代理人
主权项
地址
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