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发明名称
EXTENSION TELEPHONE SET CALL DEVICE
摘要
申请公布号
JPH0255459(A)
申请公布日期
1990.02.23
申请号
JP19880207049
申请日期
1988.08.19
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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