Improvements relating to the manufacture or production of covers for electric switches, bell-pushes, ceiling-roses, couplings, and the like, and of analogous articles,申请号GB19290036585-传众专利搜索

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发明名称	Improvements relating to the manufacture or production of covers for electric switches, bell-pushes, ceiling-roses, couplings, and the like, and of analogous articles
摘要
申请公布号	GB344422(A)	申请公布日期	1931.03.02
申请号	GB19290036585	申请日期	1929.11.29
申请人	JOHN ASHWORTH CRABTREE	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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