Improvements in or relating to arrangements for telegraph transmission,申请号GB19400010702-传众专利搜索

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发明名称	Improvements in or relating to arrangements for telegraph transmission
摘要
申请公布号	GB542730(A)	申请公布日期	1942.01.26
申请号	GB19400010702	申请日期	1940.06.21
申请人	LUCIEN ANGELIN GUSTAVE ALPHONSE BRAEM;JAN SOBOLA	发明人
分类号	H04L25/22;H04L25/49	主分类号	H04L25/22
代理机构		代理人
主权项
地址

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