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经营范围
发明名称
Improvements in or relating to electric torches and the like
摘要
申请公布号
GB336374(A)
申请公布日期
1930.10.16
申请号
GB19290027850
申请日期
1929.09.13
申请人
RICHARD COSTIGAN
发明人
分类号
F21V23/04
主分类号
F21V23/04
代理机构
代理人
主权项
地址
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