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发明名称	KEY TELEPHONE SYSTEM
摘要
申请公布号	JPH0247958(A)	申请公布日期	1990.02.16
申请号	JP19880198247	申请日期	1988.08.09
申请人	MATSUSHITA ELECTRIC IND CO LTD	发明人	OKAMOTO SHINJI
分类号	H04M1/274;H04M1/56	主分类号	H04M1/274
代理机构		代理人
主权项
地址

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