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经营范围
发明名称
CHECKING SIGNAL GENERATORS FOR DIGITAL TRANSMISSION SYSTEMS
摘要
申请公布号
GB1543846(A)
申请公布日期
1979.04.11
申请号
GB19770042188
申请日期
1977.10.11
申请人
SIEMENS AG
发明人
分类号
H04B17/40;(IPC1-7):04B3/46;03K3/84;03K13/00
主分类号
H04B17/40
代理机构
代理人
主权项
地址
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