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发明名称
Fotoelektrisk Blænderregulator til fotografiske Kameraer.
摘要
申请公布号
DK63010(C)
申请公布日期
1944.12.11
申请号
DK19390002649
申请日期
1939.11.24
申请人
HANS FERDINAND TOENNIES
发明人
HANS FERDINAND TOENNIES
分类号
主分类号
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代理人
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