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经营范围
发明名称
RING TRIP CIRCUIT
摘要
申请公布号
JPS5369504(A)
申请公布日期
1978.06.21
申请号
JP19760145384
申请日期
1976.12.02
申请人
FUJITSU LTD;NIPPON TELEGRAPH & TELEPHONE
发明人
NAGAHAMA YASUTSUGU;HARADA HIDEMI;FUJI KATSUAKI;SHIMIZU TAKESHI
分类号
H04M3/02
主分类号
H04M3/02
代理机构
代理人
主权项
地址
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