Perfectionnements aux lampes électriques à incandescence,申请号FRD776973-传众专利搜索

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发明名称	Perfectionnements aux lampes électriques à incandescence
摘要
申请公布号	FR776973(A)	申请公布日期	1935.02.08
申请号	FRD776973	申请日期	1933.10.27
申请人		发明人	FRANCOIS, JOSEPH, GERARD VAN DEN BOSCH
分类号	H01J61/76	主分类号	H01J61/76
代理机构		代理人
主权项
地址

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