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发明名称
Sperrschaltung fuer Fernsprechvermittlungs-systeme
摘要
申请公布号
DE1197131(B)
申请公布日期
1965.07.22
申请号
DE1961P027190
申请日期
1961.05.23
申请人
PYE LIMITED
发明人
DELANOY DONALD BRIAN
分类号
H03K19/084;H04Q3/52
主分类号
H03K19/084
代理机构
代理人
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地址
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