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发明名称
Improvements relating to electric lamp masks
摘要
申请公布号
GB537296(A)
申请公布日期
1941.06.17
申请号
GB19390032231
申请日期
1939.12.14
申请人
JOSEPH LUCAS LIMITED;HORACE VICTOR SIMCO
发明人
分类号
F21V11/00;F21V11/16;F21V14/08
主分类号
F21V11/00
代理机构
代理人
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