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发明名称
Schaltungsanordnung fuer Zonenzaehlung in Fernmeldeanlagen, insbesondere Fernsprechanlagen
摘要
申请公布号
DE839371(C)
申请公布日期
1952.05.23
申请号
DE1950S018675
申请日期
1950.08.19
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
TOEPFER HERBERT
分类号
H04M15/10
主分类号
H04M15/10
代理机构
代理人
主权项
地址
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