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发明名称
TELEPHONE SYSTEM
摘要
申请公布号
JPH0290845(A)
申请公布日期
1990.03.30
申请号
JP19880240734
申请日期
1988.09.28
申请人
IWATSU ELECTRIC CO LTD
发明人
HIOKA NOBORU;YAMAMOTO OSAMU
分类号
H04M1/56;H04M1/2745;H04M1/65;H04M1/656;H04M11/10
主分类号
H04M1/56
代理机构
代理人
主权项
地址
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