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发明名称
INTERFACE APPARATUS
摘要
申请公布号
GB9007138(D0)
申请公布日期
1990.05.30
申请号
GB19900007138
申请日期
1990.03.30
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
分类号
H03H7/42
主分类号
H03H7/42
代理机构
代理人
主权项
地址
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