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发明名称
Schaltungsanordnung zur UEbertragung von Notrufmeldungen ueber Anschluss-leitungen von Fernsprechanlagen
摘要
申请公布号
DE1034223(B)
申请公布日期
1958.07.17
申请号
DE1955T011043
申请日期
1955.06.20
申请人
TELEFONBAU;NORMALZEIT G.M.B.H.
发明人
SAUTTER OTTO
分类号
H04M11/04
主分类号
H04M11/04
代理机构
代理人
主权项
地址
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