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发明名称
Improvements in or relating to Boilers
摘要
申请公布号
GB1174693(A)
申请公布日期
1969.12.17
申请号
GB19680003338
申请日期
1968.01.22
申请人
HANS VIESSMANN
发明人
HANS VIESSMANN
分类号
F22D1/02;F24D3/08;F24H1/52
主分类号
F22D1/02
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代理人
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