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发明名称
TELEPHONE ACOUSTIC COUPLER
摘要
申请公布号
EP0138367(A3)
申请公布日期
1987.09.02
申请号
EP19840306115
申请日期
1984.09.07
申请人
COOKE, KENNETH
发明人
COOKE, KENNETH
分类号
H04M1/21;H04M1/215;(IPC1-7):H04M1/00;H04M11/06
主分类号
H04M1/21
代理机构
代理人
主权项
地址
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