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发明名称
Improvements in high frequency signalling systems
摘要
申请公布号
GB460821(A)
申请公布日期
1937.02.04
申请号
GB19360010521
申请日期
1936.04.09
申请人
HAZELTINE CORPORATION
发明人
分类号
H03J1/16
主分类号
H03J1/16
代理机构
代理人
主权项
地址
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