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经营范围
发明名称
Finned tubing
摘要
申请公布号
US2529545(A)
申请公布日期
1950.11.14
申请号
US19480054369
申请日期
1948.10.14
申请人
EDWARDS RAY C
发明人
EDWARDS RAY C.
分类号
F28F1/36
主分类号
F28F1/36
代理机构
代理人
主权项
地址
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