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Application filed by Zamboni AmilcarefiledCriticalZamboni Amilcare
Priority to IT2071181UpriorityCriticalpatent/IT8120711V0/it
Publication of IT8120711V0publicationCriticalpatent/IT8120711V0/it
Apparecchio e procedimento per farfunzionare un impianto ditrasmissione di codice a piu'frequenze foniche per l'inizio di chiamate telefoniche.