Improvements in and relating to brush contact devices for rotatable radio aerials,申请号GB19450010545-传众专利搜索

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发明名称	Improvements in and relating to brush contact devices for rotatable radio aerials
摘要
申请公布号	GB597523(A)	申请公布日期	1948.01.28
申请号	GB19450010545	申请日期	1945.04.26
申请人	HJALMAR EMANUEL SJOESTRAND	发明人
分类号	H01Q3/04	主分类号	H01Q3/04
代理机构		代理人
主权项
地址

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