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发明名称
Improvements in or relating to heat-retaining vessels
摘要
申请公布号
GB623392(A)
申请公布日期
1949.05.17
申请号
GB19460013587
申请日期
1946.05.04
申请人
THOMAS VYVIAN WIDD
发明人
分类号
F24H1/20
主分类号
F24H1/20
代理机构
代理人
主权项
地址
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