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发明名称
Method of forming piston ring elements of ribbon steel
摘要
申请公布号
US2436227(A)
申请公布日期
1948.02.17
申请号
US19440540714
申请日期
1944.06.16
申请人
HASTINGS MANUFACTURING COMPANY
发明人
PHILLIPS HAROLD P.
分类号
B23P15/08;C25D7/04
主分类号
B23P15/08
代理机构
代理人
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