Improvements relating to engaged and like indicators,申请号GB19320012547-传众专利搜索

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发明名称	Improvements relating to engaged and like indicators
摘要
申请公布号	GB391314(A)	申请公布日期	1933.04.27
申请号	GB19320012547	申请日期	1932.05.02
申请人	WILLIAM NEWMAN AND SONS LIMITED;HERBERT CHARLES SHEAD	发明人
分类号	G08B5/00	主分类号	G08B5/00
代理机构		代理人
主权项
地址

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