HOLDING TONE SENDING SYSTEM FOR TELEPHONE SET,申请号JP19870240048-传众专利搜索

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发明名称	HOLDING TONE SENDING SYSTEM FOR TELEPHONE SET
摘要
申请公布号	JPS6482731(A)	申请公布日期	1989.03.28
申请号	JP19870240048	申请日期	1987.09.24
申请人	NEC CORP	发明人	TAKENOUCHI REIKO
分类号	H04M1/00;H04M1/80	主分类号	H04M1/00
代理机构		代理人
主权项
地址

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