BR8906253A - Sistema de comunicacao telefonico gratuito
- Google Patents
Sistema de comunicacao telefonico gratuito
Info
Publication number
BR8906253A
BR8906253ABR8906253ABR8906253ABR8906253ABR 8906253 ABR8906253 ABR 8906253ABR 8906253 ABR8906253 ABR 8906253ABR 8906253 ABR8906253 ABR 8906253ABR 8906253 ABR8906253 ABR 8906253A
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.)
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Publication date
Application filed by Jose Carlos Valladao De MattosfiledCriticalJose Carlos Valladao De Mattos
Priority to BR8906253ApriorityCriticalpatent/BR8906253A/pt
Publication of BR8906253ApublicationCriticalpatent/BR8906253A/pt