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经营范围
发明名称
Improvements in tubes for heat exchange apparatus
摘要
申请公布号
GB569000(A)
申请公布日期
1945.04.30
申请号
GB19440018017
申请日期
1944.09.21
申请人
EDWARD FRANK SPANNER
发明人
分类号
F24H3/08;F28F1/42;F28F13/06
主分类号
F24H3/08
代理机构
代理人
主权项
地址
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