Verfahren zur Erzielung matter schwarzer Färbungen auf Gegenständen aus Aluminium und Aluminiumlegierungen.,申请号CHD224430-传众专利搜索

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发明名称	Verfahren zur Erzielung matter schwarzer Färbungen auf Gegenständen aus Aluminium und Aluminiumlegierungen.
摘要
申请公布号	CH224430(A)	申请公布日期	1942.11.30
申请号	CHD224430	申请日期	1941.09.30
申请人	V. D. O. TACHOMETER A.-G.	发明人	A.-G. V. D. O. TACHOMETER
分类号	C23C22/40	主分类号	C23C22/40
代理机构		代理人
主权项
地址

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