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经营范围
发明名称
Improvements in domestic hot water supply systems
摘要
申请公布号
GB434900(A)
申请公布日期
1935.09.11
申请号
GB19340021385
申请日期
1934.07.21
申请人
JOHN REES WILLIAMS
发明人
分类号
F24D17/00
主分类号
F24D17/00
代理机构
代理人
主权项
地址
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