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发明名称
METHOD AND PRODUCT OF THE METHOD OF MAKING TUBES HAVING INTERNAL FINS
摘要
申请公布号
CA543239(A)
申请公布日期
1957.07.09
申请号
CAD543239
申请日期
申请人
BROWN FINTUBE COMPANY
发明人
JOHN W. BROWN, JR.
分类号
主分类号
代理机构
代理人
主权项
地址
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