ELECTRONIC RINGING DEVICE,申请号JP19900077811-传众专利搜索

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发明名称	ELECTRONIC RINGING DEVICE
摘要
申请公布号	JPH03276192(A)	申请公布日期	1991.12.06
申请号	JP19900077811	申请日期	1990.03.27
申请人	MATSUSHITA ELECTRIC WORKS LTD	发明人	HASEGAWA AKIHIKO
分类号	G10K9/13	主分类号	G10K9/13
代理机构		代理人
主权项
地址

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