Improvements in or relating to safety devices for electric blasting detonators,申请号GB19330010721-传众专利搜索

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发明名称	Improvements in or relating to safety devices for electric blasting detonators
摘要
申请公布号	GB398762(A)	申请公布日期	1933.09.21
申请号	GB19330010721	申请日期	1933.04.10
申请人	JOSEPH THOMAS CHARLES WILLIAMS;RUSSELL JAMES TOWNSEND	发明人
分类号	F42B3/18;F42B3/182	主分类号	F42B3/18
代理机构		代理人
主权项
地址

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