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发明名称
Automatisk Kaldeapparat til automatiske og halvautomatiske Telefonsystemer.
摘要
申请公布号
DK57899(C)
申请公布日期
1940.08.19
申请号
DKD57899
申请日期
1938.12.23
申请人
EXAM. JOERGEN ADOLPH SMITH
发明人
EXAM. JOERGEN ADOLPH SMITH
分类号
主分类号
代理机构
代理人
主权项
地址
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