IT1000317B - Perfezionamento nei sistemi telefonici
- Google Patents
Perfezionamento nei sistemi telefonici
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Publication number
IT1000317B
IT1000317BIT54279/73AIT5427973AIT1000317BIT 1000317 BIT1000317 BIT 1000317BIT 54279/73 AIT54279/73 AIT 54279/73AIT 5427973 AIT5427973 AIT 5427973AIT 1000317 BIT1000317 BIT 1000317B
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Application filed by Western Union IntfiledCriticalWestern Union Int
Publication of IT7354279A1publicationCriticalpatent/IT7354279A1/it
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Publication of IT1000317BpublicationCriticalpatent/IT1000317B/it