Radio alarm system,申请号US19380232518-传众专利搜索

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发明名称	Radio alarm system
摘要
申请公布号	US2289517(A)	申请公布日期	1942.07.14
申请号	US19380232518	申请日期	1938.09.30
申请人	THE AMERICAN DISTRICT TELEGRAPH COMPANY	发明人	MUCHTER MANFRED W.
分类号	G08B19/00	主分类号	G08B19/00
代理机构		代理人
主权项
地址

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