Radio alarm system,申请号US19380184713-传众专利搜索

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发明名称	Radio alarm system
摘要
申请公布号	US2250834(A)	申请公布日期	1941.07.29
申请号	US19380184713	申请日期	1938.01.12
申请人	HOWTON RADIO ALARM COMPANY	发明人	HOWTON JAMES O.
分类号	G08B25/10	主分类号	G08B25/10
代理机构		代理人
主权项
地址

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