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发明名称
Method of manufacturing coiled strip-steel tubing and tubing obtained thereby
摘要
申请公布号
GB811517(A)
申请公布日期
1959.04.08
申请号
GB19560012684
申请日期
1956.04.25
申请人
JEAN FAVARD
发明人
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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