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发明名称
An improved method of and apparatus for illumination with a continuous play of colours
摘要
申请公布号
GB340565(A)
申请公布日期
1931.01.02
申请号
GB19290029821
申请日期
1929.10.02
申请人
LANDIS & GYR S.A.
发明人
分类号
F21S10/00;F21V9/10
主分类号
F21S10/00
代理机构
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