Improvements in or relating to annunciators,申请号GB19570038189-传众专利搜索

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发明名称	Improvements in or relating to annunciators
摘要
申请公布号	GB856724(A)	申请公布日期	1960.12.21
申请号	GB19570038189	申请日期	1957.12.09
申请人	WESTINGHOUSE ELECTRIC CORPORATION	发明人
分类号	G08B23/00;G08B25/14	主分类号	G08B23/00
代理机构		代理人
主权项
地址

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