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发明名称
Schaltungsanordnung fuer eine potentialfreie Spannungsquelle in Fernmelde-, insbesondere Fernsprechanlagen
摘要
申请公布号
DE1170016(B)
申请公布日期
1964.05.14
申请号
DE1962S081690
申请日期
1962.09.27
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
WOLFRUM ALBERT
分类号
H04M19/00
主分类号
H04M19/00
代理机构
代理人
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地址
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