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发明名称
TELEPHONE LOGGING & BARRING EQUIPMENT
摘要
申请公布号
GB8506892(D0)
申请公布日期
1985.04.17
申请号
GB19850006892
申请日期
1985.03.16
申请人
MARTIN, D A
发明人
分类号
主分类号
代理机构
代理人
主权项
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