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经营范围
发明名称
Improvements in or relating to domestic water heaters
摘要
申请公布号
GB635935(A)
申请公布日期
1950.04.19
申请号
GB19470023157
申请日期
1947.08.21
申请人
WALTER JOHN BRETTELL
发明人
分类号
F24C13/00
主分类号
F24C13/00
代理机构
代理人
主权项
地址
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