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发明名称
Vermittlungsstelle für elektrische Fernmeldeverbindungen.
摘要
申请公布号
CH157790(A)
申请公布日期
1932.10.15
申请号
CHD157790
申请日期
1931.06.11
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
主权项
地址
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