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经营范围
发明名称
Improvements in or relating to electrical heating apparatus
摘要
申请公布号
GB407596(A)
申请公布日期
1934.03.22
申请号
GB19330020975
申请日期
1933.07.25
申请人
UNITY HEATING LIMITED;DAVID GRANT PETRIE
发明人
分类号
F24C7/00
主分类号
F24C7/00
代理机构
代理人
主权项
地址
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