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发明名称
TELEPHONE EXCHANGE SYSTEM
摘要
申请公布号
JPH02223294(A)
申请公布日期
1990.09.05
申请号
JP19890044437
申请日期
1989.02.23
申请人
MATSUSHITA ELECTRIC WORKS LTD
发明人
IWAMOTO KINYA;SUZUKI YOSHIHARU;KOMODA YOSHIYUKI
分类号
H04M3/42;H04M1/00;H04Q3/58
主分类号
H04M3/42
代理机构
代理人
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地址
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