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发明名称
METHOD AND APPARATUS FOR HELICALLY WELDING STRIP MATERIAL
摘要
申请公布号
CA816850(A)
申请公布日期
1969.07.01
申请号
CAD816850
申请日期
申请人
BROWN FINTUBE COMPANY
发明人
JOHN W. BROWN, JR.;ROBERT W. KAASE
分类号
主分类号
代理机构
代理人
主权项
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