Magnetic field neutralizing system,申请号US19390292926-传众专利搜索

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发明名称	Magnetic field neutralizing system
摘要
申请公布号	US2214729(A)	申请公布日期	1940.09.17
申请号	US19390292926	申请日期	1939.08.31
申请人	RADIO CORPORATION OF AMERICA	发明人	HICKOK WILLARD H.
分类号	H01J29/54	主分类号	H01J29/54
代理机构		代理人
主权项
地址

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