IT1103995B - Dispositivo per la rivelazione acustica di un segnale elettrico di chiamata
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Dispositivo per la rivelazione acustica di un segnale elettrico di chiamata
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Publication number
IT1103995B
IT1103995BIT40008/78AIT4000878AIT1103995BIT 1103995 BIT1103995 BIT 1103995BIT 40008/78 AIT40008/78 AIT 40008/78AIT 4000878 AIT4000878 AIT 4000878AIT 1103995 BIT1103995 BIT 1103995B
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Application filed by S G S Di Sighinolfi Sergio E CfiledCriticalS G S Di Sighinolfi Sergio E C
Priority to IT40008/78ApriorityCriticalpatent/IT1103995B/it
Publication of IT7840008A0publicationCriticalpatent/IT7840008A0/it
Application grantedgrantedCritical
Publication of IT1103995BpublicationCriticalpatent/IT1103995B/it