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经营范围
发明名称
Improvements in and relating to gas water heating appliances
摘要
申请公布号
GB590227(A)
申请公布日期
1947.07.11
申请号
GB19450002970
申请日期
1945.02.06
申请人
LEOPOLD FRIEDMAN
发明人
分类号
F24H9/20
主分类号
F24H9/20
代理机构
代理人
主权项
地址
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