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发明名称
Piston rings
摘要
申请公布号
US2823086(A)
申请公布日期
1958.02.11
申请号
US19550485724
申请日期
1955.02.02
申请人
ZAHODIAKIN VICTOR F
发明人
ZAHODIAKIN VICTOR F.
分类号
F16J9/06;F16J9/20
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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