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发明名称
DISPLAY SYSTEM FOR SWITCHBOARD TICKET
摘要
申请公布号
JPS6243253(A)
申请公布日期
1987.02.25
申请号
JP19850181730
申请日期
1985.08.21
申请人
HITACHI LTD
发明人
SUEZAKI EIICHI
分类号
H04M3/60
主分类号
H04M3/60
代理机构
代理人
主权项
地址
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