BR7506521A - Processo industrial de extracao de ouro fino ou coloidal por amalgamacao sob pressao com elutriacao
- Google Patents
Processo industrial de extracao de ouro fino ou coloidal por amalgamacao sob pressao com elutriacao
Info
Publication number
BR7506521A
BR7506521ABR7506521ABR7506521ABR7506521ABR 7506521 ABR7506521 ABR 7506521ABR 7506521 ABR7506521 ABR 7506521ABR 7506521 ABR7506521 ABR 7506521ABR 7506521 ABR7506521 ABR 7506521A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Negreiros Sayao Lobato F De, F PeixotofiledCriticalNegreiros Sayao Lobato F De
Priority to BR7506521ApriorityCriticalpatent/BR7506521A/pt
Publication of BR7506521ApublicationCriticalpatent/BR7506521A/pt
Werkwijze voor het vervaardigen van halfgelei- derinrichtingen, waarbij een glazen bedekking wordt aangebracht, en halfgeleiderinrichtingen, vervaardigd volgens deze werkwijze.