Film oder Platte für die Schallwiedergabe nach dem lichtelektrischen Verfahren und Verfahren zu deren Herstellung.,申请号ATD121408-传众专利搜索

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发明名称	Film oder Platte für die Schallwiedergabe nach dem lichtelektrischen Verfahren und Verfahren zu deren Herstellung.
摘要
申请公布号	AT121408(B)	申请公布日期	1931.02.25
申请号	ATD121408	申请日期	1929.07.19
申请人	CARL ROEHRICH	发明人	CARL ROEHRICH
分类号		主分类号
代理机构		代理人
主权项
地址

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