IT1096821B - Convertitore telefonico elettroacustico
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Convertitore telefonico elettroacustico
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Publication number
IT1096821B
IT1096821BIT2519878AIT2519878AIT1096821BIT 1096821 BIT1096821 BIT 1096821BIT 2519878 AIT2519878 AIT 2519878AIT 2519878 AIT2519878 AIT 2519878AIT 1096821 BIT1096821 BIT 1096821B
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Application filed by Spanel Abram NathanielfiledCriticalSpanel Abram Nathaniel
Priority to IT2519878ApriorityCriticalpatent/IT1096821B/it
Publication of IT7825198A0publicationCriticalpatent/IT7825198A0/it
Application grantedgrantedCritical
Publication of IT1096821BpublicationCriticalpatent/IT1096821B/it