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发明名称
Perfectionnements aux appareils destinés à la modulation d'énergie radiante
摘要
申请公布号
FR762806(A)
申请公布日期
1934.04.19
申请号
FRD762806
申请日期
1933.10.18
申请人
ELECTRICAL RESEARCH PRODUCTS INC.
发明人
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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