CALL TONE GENERATOR FOR TELEPHONE SET,申请号JP19900329401-传众专利搜索

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发明名称	CALL TONE GENERATOR FOR TELEPHONE SET
摘要
申请公布号	JPH04207340(A)	申请公布日期	1992.07.29
申请号	JP19900329401	申请日期	1990.11.30
申请人	HITACHI LTD	发明人	TAJIMA TAIJI;ASAMI KAZUHIRO;ONO MASAO;OKAWA SHUJI
分类号	H04M1/00	主分类号	H04M1/00
代理机构		代理人
主权项
地址

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