Telephone Line Monitor/Alarm,申请号CA19942133900-传众专利搜索

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发明名称	Telephone Line Monitor/Alarm
摘要
申请公布号	CA2133900(A1)	申请公布日期	1996.04.08
申请号	CA19942133900	申请日期	1994.10.07
申请人	DUNN, ROBERT G.	发明人	DUNN, ROBERT G.
分类号	H04M1/00;H04M3/08;H04M3/24;(IPC1-7):H04M3/24	主分类号	H04M1/00
代理机构		代理人
主权项
地址

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