Perfectionnements aux joints étanches aux gaz applicables aux tubes à décharge électrique,申请号FRD812648-传众专利搜索

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发明名称	Perfectionnements aux joints étanches aux gaz applicables aux tubes à décharge électrique
摘要
申请公布号	FR812648(A)	申请公布日期	1937.05.13
申请号	FRD812648	申请日期	1936.01.17
申请人	LE MATERIEL TELEPHONIQUE	发明人
分类号	H01J5/30	主分类号	H01J5/30
代理机构		代理人
主权项
地址

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