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经营范围
发明名称
Improvements in and relating to the manufacture of rings from wire
摘要
申请公布号
GB617560(A)
申请公布日期
1949.02.08
申请号
GB19460029865
申请日期
1946.10.07
申请人
ROLAND CLAUD CROSS;CROSS MANUFACTURING COMPANY (1938) LIMITED
发明人
分类号
B21F37/02
主分类号
B21F37/02
代理机构
代理人
主权项
地址
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