Electrical protective alarm system,申请号US19460686694-传众专利搜索

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发明名称	Electrical protective alarm system
摘要
申请公布号	US2492432(A)	申请公布日期	1949.12.27
申请号	US19460686694	申请日期	1946.07.27
申请人	ELECTRO-PROTECTIVE CORPORATION	发明人	LAFORD HERBERT M.
分类号	G08B13/22	主分类号	G08B13/22
代理机构		代理人
主权项
地址

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