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经营范围
发明名称
Modulateur de lumière
摘要
申请公布号
FR747814(A)
申请公布日期
1933.06.24
申请号
FRD747814
申请日期
1932.11.12
申请人
发明人
MOULIN MAURICE
分类号
H04N5/66
主分类号
H04N5/66
代理机构
代理人
主权项
地址
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