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发明名称
Beleuchtungsvorrichtung zur Ausleuchtung eines bestimmten Bildfeldes.
摘要
申请公布号
CH262324(A)
申请公布日期
1949.06.30
申请号
CHD262324
申请日期
1947.02.01
申请人
GRETENER,EDGAR,DR. ING.
发明人
ING. GRETENER,EDGAR,DR.
分类号
G03B21/20
主分类号
G03B21/20
代理机构
代理人
主权项
地址
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