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经营范围
发明名称
BUSY TONE ELIMINATION SYSTEM
摘要
申请公布号
JPH04291563(A)
申请公布日期
1992.10.15
申请号
JP19910056569
申请日期
1991.03.20
申请人
FUJITSU LTD
发明人
YOSHIMOTO KAZUMASU;KINO TORU;AWATA KOSAKU
分类号
H04M3/42;H04M3/533
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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