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发明名称
Bildwerfer fuer verdunklungsfreien Bildwechsel
摘要
申请公布号
DE893269(C)
申请公布日期
1953.10.15
申请号
DE1949P001489
申请日期
1949.01.15
申请人
SITTIG GEORG
发明人
SITTIG GEORG
分类号
G02B1/00
主分类号
G02B1/00
代理机构
代理人
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