Improvements in or relating to electric signalling or control systems,申请号GB19310033507-传众专利搜索

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发明名称	Improvements in or relating to electric signalling or control systems
摘要
申请公布号	GB393613(A)	申请公布日期	1933.06.06
申请号	GB19310033507	申请日期	1931.12.03
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;FRANCIS BARRETT WILLIS;EDGAR PHILIP LAWRENCE WESTELL	发明人
分类号	H02J13/00	主分类号	H02J13/00
代理机构		代理人
主权项
地址

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