TELEPHONE SYSTEM FOR DIRECT TELEPHONE CIRCUIT,申请号JP19920156797-传众专利搜索

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发明名称	TELEPHONE SYSTEM FOR DIRECT TELEPHONE CIRCUIT
摘要
申请公布号	JPH066458(A)	申请公布日期	1994.01.14
申请号	JP19920156797	申请日期	1992.06.16
申请人	HASEGAWA ELECTRIC CO LTD	发明人	IKEDA EISHI;ITO AKIRA
分类号	H04M3/42;H04Q1/45;(IPC1-7):H04M3/42	主分类号	H04M3/42
代理机构		代理人
主权项
地址

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