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经营范围
发明名称
Schaltungsanordnung fuer Fernsprechnebenstellenanlagen
摘要
申请公布号
DE703546(C)
申请公布日期
1941.03.11
申请号
DE193100F0807D
申请日期
1931.04.19
申请人
TELEFONBAU;NORMALZEIT LEHNER & CO.;PHILIPP NAGEL
发明人
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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