IT1145243BIT68665/81AIT6866581AIT1145243BIT 1145243 BIT1145243 BIT 1145243BIT 68665/81 AIT68665/81 AIT 68665/81AIT 6866581 AIT6866581 AIT 6866581AIT 1145243 BIT1145243 BIT 1145243B
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Priority to IT68665/81ApriorityCriticalpatent/IT1145243B/it
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Priority to BR8203482Aprioritypatent/BR8203482A/pt
Priority to EP19820303086prioritypatent/EP0067706B1/en
Priority to DE8282303086Tprioritypatent/DE3280307D1/de
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Mejoras introducidas en el objeto de la patente principal n.0461382, presentada el 5 de agosto de 1977, poun dispositi-vo calentador de aire por energia solar perfeccionado