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发明名称
Headphone-convertible telephone headset.
摘要
申请公布号
EP0401007(B1)
申请公布日期
1995.03.22
申请号
EP19900305909
申请日期
1990.05.31
申请人
CHEN, PING-HUANG
发明人
CHEN, PING-HUANG
分类号
H04M1/05;(IPC1-7):H04M1/05
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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