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经营范围
发明名称
Improvements in or connected with tube bending
摘要
申请公布号
GB778842(A)
申请公布日期
1957.07.10
申请号
GB19510019869
申请日期
1951.08.23
申请人
E. GREEN & SON LIMITED
发明人
PARRIS CYRIL WRIGHT
分类号
B21D9/07
主分类号
B21D9/07
代理机构
代理人
主权项
地址
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