Travelling wave tube having a graphite coating in the central region and the free end at least 10 wavelengths long and a qc of at least 0.4,申请号US19640395383-传众专利搜索

发明名称	Travelling wave tube having a graphite coating in the central region and the free end at least 10 wavelengths long and a qc of at least 0.4
摘要
申请公布号	US3399326(A)	申请公布日期	1968.08.27
申请号	US19640395383	申请日期	1964.09.10
申请人	NORTH AMERICAN PHILIPS COMPANY, INC.	发明人	DECHERING JOHANNES ANTONIUS BERNARDUS;OBER JACOB;MEIJER ANNE
分类号	H01J23/30	主分类号	H01J23/30
代理机构		代理人
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