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发明名称
Improvements in water tube boilers
摘要
申请公布号
GB774157(A)
申请公布日期
1957.05.08
申请号
GB19550009613
申请日期
1955.04.01
申请人
HEINRICH VORKAUF
发明人
分类号
F22B21/34;F22B21/36
主分类号
F22B21/34
代理机构
代理人
主权项
地址
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