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发明名称
KEY TELEPHONE SET
摘要
PURPOSE:To enable to ensure the suspended office line with one display element every office line, by depressing the suspension check button.
申请公布号
JPS53110403(A)
申请公布日期
1978.09.27
申请号
JP19770026213
申请日期
1977.03.09
申请人
NIPPON ELECTRIC CO
发明人
NAKAMURA TERUO
分类号
H04Q3/58;H04M3/428
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
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