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经营范围
发明名称
Corps lumineux
摘要
申请公布号
FR1072948(A)
申请公布日期
1954.09.16
申请号
FRD1072948
申请日期
1953.03.13
申请人
发明人
ETZKORN WALTER VINCENT
分类号
F21K99/00;G09F13/26;H01J61/92;H01J65/04
主分类号
F21K99/00
代理机构
代理人
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