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经营范围
发明名称
Elektronische Zaehlschaltung
摘要
申请公布号
DE846319(C)
申请公布日期
1952.08.11
申请号
DE1951N003927
申请日期
1951.05.18
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
THOMAS GRAHAM ISAAC
分类号
H03K23/82
主分类号
H03K23/82
代理机构
代理人
主权项
地址
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