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发明名称
Telephone transmission systems
摘要
申请公布号
GB330580(A)
申请公布日期
1930.06.11
申请号
GB19290007968
申请日期
1929.03.11
申请人
STANDARD TELEPHONES AND CABLES LIMITED;KENNETH ERIC LATIMER
发明人
分类号
H01B11/16
主分类号
H01B11/16
代理机构
代理人
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地址
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