Perfectionnements aux tubes à décharge,申请号FRD707770-传众专利搜索

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发明名称	Perfectionnements aux tubes à décharge
摘要
申请公布号	FR707770(A)	申请公布日期	1931.07.15
申请号	FRD707770	申请日期	1930.03.24
申请人		发明人	CLAUDE GEORGES
分类号	H05B41/19	主分类号	H05B41/19
代理机构		代理人
主权项
地址

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