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发明名称
AUTOMATIC RINGER SWITCHING SYSTEM
摘要
申请公布号
JPH02281856(A)
申请公布日期
1990.11.19
申请号
JP19890103942
申请日期
1989.04.24
申请人
FUJITSU LTD
发明人
IKEDA KOJI;MAKIYAMA TAKAO
分类号
H04M1/00
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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