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发明名称
Piston ring
摘要
申请公布号
US2650144(A)
申请公布日期
1953.08.25
申请号
US19520274109
申请日期
1952.02.29
申请人
HASTINGS MANUFACTURING COMPANY
发明人
PHILLIPS HAROLD P.
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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