Improvements in or relating to start stop telegraph apparatus,申请号GB19360019252-传众专利搜索

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发明名称	Improvements in or relating to start stop telegraph apparatus
摘要
申请公布号	GB476123(A)	申请公布日期	1937.12.02
申请号	GB19360019252	申请日期	1936.07.11
申请人	RONALD GEORGE GRIFFITH	发明人
分类号	H04L17/02	主分类号	H04L17/02
代理机构		代理人
主权项
地址

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