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发明名称
Schaltungsanordnung fuer Vermittlungseinrichtungen
摘要
申请公布号
DE1047259(B)
申请公布日期
1958.12.24
申请号
DE1954I010858
申请日期
1954.09.01
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
BRAY FREDERICK H.;KNIGHT RONALD G.;HARTLEY GEORGE C.
分类号
H01J17/48;H03K17/52;H03K29/00;H04Q3/52
主分类号
H01J17/48
代理机构
代理人
主权项
地址
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