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经营范围
发明名称
Circuit to improve transducer separation in handsfree telephone
摘要
申请公布号
GB9803352(D0)
申请公布日期
1998.04.15
申请号
GB19980003352
申请日期
1998.02.17
申请人
MITEL CORPORATION
发明人
分类号
H04M1/19;H04M1/60
主分类号
H04M1/19
代理机构
代理人
主权项
地址
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