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发明名称
SIDE TONE CONTROL CIRCUIT FOR DIGITAL TELEPHONE SET
摘要
申请公布号
JPH02301355(A)
申请公布日期
1990.12.13
申请号
JP19890121999
申请日期
1989.05.16
申请人
FUJITSU LTD;HASEGAWA DENKI SEISAKUSHO:KK
发明人
HIBINO OSAMU;KAWASHIMA KENJI
分类号
H04M1/58
主分类号
H04M1/58
代理机构
代理人
主权项
地址
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