Electric alarm and indicating device,申请号US19450620800-传众专利搜索

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发明名称	Electric alarm and indicating device
摘要
申请公布号	US2429363(A)	申请公布日期	1947.10.21
申请号	US19450620800	申请日期	1945.10.06
申请人	MCLAREN JOHN A	发明人	MCLAREN JOHN A.
分类号	G08B7/00	主分类号	G08B7/00
代理机构		代理人
主权项
地址

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