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发明名称
Improvements relating to the manufacture of piston rings
摘要
申请公布号
GB840490(A)
申请公布日期
1960.07.06
申请号
GB19580008302
申请日期
1958.03.14
申请人
GOETZEWERKE FRIEDRICH GOETZE AKTIENGESELLSCHAFT
发明人
分类号
C22C37/00
主分类号
C22C37/00
代理机构
代理人
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