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经营范围
发明名称
Improvements in or relating to electric warm plates
摘要
申请公布号
GB670278(A)
申请公布日期
1952.04.16
申请号
GB19490006607
申请日期
1949.09.10
申请人
JOHN ALEXANDER GREY
发明人
分类号
A47J39/02
主分类号
A47J39/02
代理机构
代理人
主权项
地址
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