Improvements in or relating to systems of secret radio communication,申请号GB19440001078-传众专利搜索

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发明名称	Improvements in or relating to systems of secret radio communication
摘要
申请公布号	GB581344(A)	申请公布日期	1946.10.09
申请号	GB19440001078	申请日期	1944.01.19
申请人	SPERRY GYROSCOPE COMPANY INC.	发明人
分类号	H04K1/02	主分类号	H04K1/02
代理机构		代理人
主权项
地址

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