Koffersprechmaschine,申请号DENDATK113721D-传众专利搜索

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发明名称	Koffersprechmaschine
摘要
申请公布号	DE520747(C)	申请公布日期	1931.03.13
申请号	DENDATK113721D	申请日期
申请人	HEINRICH KUECHENMEISTER	发明人
分类号	G10K13/00;G11B25/04	主分类号	G10K13/00
代理机构		代理人
主权项
地址

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