Improvements in electrical signalling systems suitable for use in mines or the like,申请号GB19430003145-传众专利搜索

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发明名称	Improvements in electrical signalling systems suitable for use in mines or the like
摘要
申请公布号	GB563815(A)	申请公布日期	1944.08.31
申请号	GB19430003145	申请日期	1943.02.26
申请人	AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED;THOMAS PHILIP PREIST;GEORGE WILLIAM THOMPSON	发明人
分类号	B66B19/06	主分类号	B66B19/06
代理机构		代理人
主权项
地址

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