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经营范围
发明名称
Dispositif d'éclairage électrique pour partition de musique.
摘要
申请公布号
CH178830(A)
申请公布日期
1935.08.15
申请号
CHD178830
申请日期
1935.02.07
申请人
ERARD,JOSEPH
发明人
ERARD,JOSEPH
分类号
F21V33/00;G10G7/00
主分类号
F21V33/00
代理机构
代理人
主权项
地址
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