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发明名称
Improvements in steam boilers
摘要
申请公布号
GB640637(A)
申请公布日期
1950.07.26
申请号
GB19460019554
申请日期
1946.07.01
申请人
KARL FOLKE NORDLUND
发明人
分类号
F22B21/24;F22B21/34
主分类号
F22B21/24
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