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发明名称
Method of and apparatus for producing helically finned tubes
摘要
申请公布号
GB2183519(A)
申请公布日期
1987.06.10
申请号
GB19860028624
申请日期
1986.12.01
申请人
* CARRIER CORPORATION
发明人
PAUL H * BALLENTINE
分类号
B23G1/00;B21C37/20;B21D53/06;(IPC1-7):B21B19/16;F28F1/42
主分类号
B23G1/00
代理机构
代理人
主权项
地址
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