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发明名称
RETURN ERROR PREVENTING SYSTEM FOR HAND-FREE TELEPHONE SET
摘要
申请公布号
JPH01238351(A)
申请公布日期
1989.09.22
申请号
JP19880065473
申请日期
1988.03.18
申请人
FUJITSU TEN LTD
发明人
TAKAGI MASAKI;TOMITA TSUTOMU
分类号
H04M1/60
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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