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发明名称
METHOD AND APPARATUS FOR PRODUCING HELICALLY FINNED TUBES
摘要
申请公布号
GB2183519(B)
申请公布日期
1989.10.04
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
主分类号
B23G1/00
代理机构
代理人
主权项
地址
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