AUTOMATIC TELEPHONE ALARM SYSTEM,申请号USD3573780-传众专利搜索

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发明名称	AUTOMATIC TELEPHONE ALARM SYSTEM
摘要
申请公布号	US3573780(A)	申请公布日期	1971.04.06
申请号	USD3573780	申请日期	1968.09.27
申请人	FRANKLIN C. BUTTERBAUGH	发明人	FRANKLIN C. BUTTERBAUGH
分类号	H04M11/04;(IPC1-7):G08B21/00	主分类号	H04M11/04
代理机构		代理人
主权项
地址

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