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经营范围
发明名称
Portable electric lamp
摘要
申请公布号
GB347833(A)
申请公布日期
1931.05.07
申请号
GB19300009379
申请日期
1930.03.24
申请人
JOHANN KREMENEZKY;KARL BLITZ
发明人
分类号
F21L4/00
主分类号
F21L4/00
代理机构
代理人
主权项
地址
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