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经营范围
发明名称
Improvements in wire and rod drawing dies
摘要
申请公布号
GB578506(A)
申请公布日期
1946.07.01
申请号
GB19440026183
申请日期
1944.12.30
申请人
JOHN GEORGE CASSELLS;CYRIL WILLIAM KIEFT;SYDNEY BURROWS
发明人
分类号
B21C3/06
主分类号
B21C3/06
代理机构
代理人
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