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发明名称
Method of forming finned tubing or the like
摘要
申请公布号
US2179530(A)
申请公布日期
1939.11.14
申请号
US19350055072
申请日期
1935.12.18
申请人
TOWNSEND ALBERT J;BASCOMBE FRANK J
发明人
TOWNSEND ALBERT J.;BASCOMBE FRANK J.
分类号
B21C37/20
主分类号
B21C37/20
代理机构
代理人
主权项
地址
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