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发明名称
Improvements in field tubes for heat-transfer apparatus such as water-tube boilers
摘要
申请公布号
GB485196(A)
申请公布日期
1938.05.11
申请号
GB19360030828
申请日期
1936.11.11
申请人
WILLIAM YORATH LEWIS
发明人
分类号
F22B23/00
主分类号
F22B23/00
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代理人
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