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经营范围
发明名称
PRIVATE TELEPHONE EXCHANGE SYSTEM
摘要
申请公布号
JPS6477259(A)
申请公布日期
1989.03.23
申请号
JP19870232057
申请日期
1987.09.18
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
NISHIYAMA TAKESHI
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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