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经营范围
发明名称
Improvements in or relating to lamp shades
摘要
申请公布号
GB370644(A)
申请公布日期
1932.04.14
申请号
GB19310010168
申请日期
1931.04.07
申请人
HELEN MATHISON TWEEDIE
发明人
分类号
F21V1/00
主分类号
F21V1/00
代理机构
代理人
主权项
地址
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