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发明名称
Improvements in or relating to means for optically projecting on to clouds
摘要
申请公布号
GB333198(A)
申请公布日期
1930.08.06
申请号
GB19290010648
申请日期
1929.04.06
申请人
EDMUND EDWARD FOURNIER D'ALBE
发明人
分类号
G09F19/18
主分类号
G09F19/18
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代理人
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