Improvements in or relating to directional wireless signalling,申请号GB19320011740-传众专利搜索

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发明名称	Improvements in or relating to directional wireless signalling
摘要
申请公布号	GB400279(A)	申请公布日期	1933.10.23
申请号	GB19320011740	申请日期	1932.04.23
申请人	JOHN POLAND BOWEN;MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人
分类号	G01S1/02	主分类号	G01S1/02
代理机构		代理人
主权项
地址

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