Improvements in or relating to code pen-recorders,申请号GB19460010811-传众专利搜索

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发明名称	Improvements in or relating to code pen-recorders
摘要
申请公布号	GB623014(A)	申请公布日期	1949.05.11
申请号	GB19460010811	申请日期	1946.04.08
申请人	SOCIETE FRANCAISE RADIO-ELECTRIQUE	发明人
分类号	H04L15/30	主分类号	H04L15/30
代理机构		代理人
主权项
地址

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