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发明名称
Time-slot reservation for trunk calls in pbx telephone systems
摘要
申请公布号
US3319008(A)
申请公布日期
1967.05.09
申请号
US19630274062
申请日期
1963.04.18
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT BERLIN AND MUNICH
发明人
KNEISEL OTTO;FISCH ALBERT;HONOLD HORST
分类号
H04Q11/04
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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