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发明名称
Vermittlungsstelle für elektrische Fernmeldeverbindungen.
摘要
申请公布号
CH160685(A)
申请公布日期
1933.03.15
申请号
CHD160685
申请日期
1931.07.21
申请人
RUMPF,FRITZ
发明人
RUMPF,FRITZ
分类号
G06K17/00;H04M15/38
主分类号
G06K17/00
代理机构
代理人
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地址
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