Einrichtung zur Erzeugung einer konstanten Speisespannung für die Photozelle eines Tongerätes.,申请号CHD226264-传众专利搜索

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发明名称	Einrichtung zur Erzeugung einer konstanten Speisespannung für die Photozelle eines Tongerätes.
摘要
申请公布号	CH226264(A)	申请公布日期	1943.03.31
申请号	CHD226264	申请日期	1942.03.30
申请人	FILMGRAMMOPHON A.-G.	发明人	A.-G. FILMGRAMMOPHON
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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