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发明名称
Improvements in and relating to the production of cast rings of metal
摘要
申请公布号
GB699174(A)
申请公布日期
1953.11.04
申请号
GB19500001567
申请日期
1950.01.20
申请人
A. G. OEDERLIN & CIE
发明人
分类号
B22D13/04
主分类号
B22D13/04
代理机构
代理人
主权项
地址
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