Dispositif d'entraînement à vitesse constante,申请号FRD708590-传众专利搜索

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发明名称	Dispositif d'entraînement à vitesse constante
摘要
申请公布号	FR708590(A)	申请公布日期	1931.07.25
申请号	FRD708590	申请日期	1930.12.30
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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