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发明名称
Telephone instrument
摘要
申请公布号
GB2209906(A)
申请公布日期
1989.05.24
申请号
GB19870021485
申请日期
1987.09.11
申请人
* CRYSTALATE ELECTRONICS LIMITED
发明人
HOWARD JOHN * MITCHELL
分类号
H04M1/19;H04M1/20
主分类号
H04M1/19
代理机构
代理人
主权项
地址
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