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经营范围
发明名称
ECRAN DE PROJECTION
摘要
申请公布号
FR2349155(A1)
申请公布日期
1977.11.18
申请号
FR19770012282
申请日期
1977.04.22
申请人
SCHUDEL CONRAD
发明人
分类号
G03B21/60;G03B21/56;(IPC1-7):G03B21/56
主分类号
G03B21/60
代理机构
代理人
主权项
地址
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