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发明名称
Kobling til kombination af elektriske signaler.
摘要
申请公布号
DK81187(C)
申请公布日期
1956.10.01
申请号
DK19520002976
申请日期
1952.09.26
申请人
BRITISH TELECOMMUNICATIONS RESEARCH LIMITED
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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