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发明名称
Piston ring
摘要
申请公布号
US2387855(A)
申请公布日期
1945.10.30
申请号
US19440526716
申请日期
1944.03.16
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
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