KEY TELEPHONE SYSTEM,申请号JP19900212880-传众专利搜索

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发明名称	KEY TELEPHONE SYSTEM
摘要
申请公布号	JPH0495493(A)	申请公布日期	1992.03.27
申请号	JP19900212880	申请日期	1990.08.10
申请人	MATSUSHITA ELECTRIC IND CO LTD	发明人	OKAMOTO SHINJI
分类号	H04M1/00;H04Q3/58	主分类号	H04M1/00
代理机构		代理人
主权项
地址

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