CH424872A - Arrangement de liaison entre deux groupes d'appareils dans un central de télécommunication
- Google Patents
Arrangement de liaison entre deux groupes d'appareils dans un central de télécommunication
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Publication number
CH424872A
CH424872ACH1161363ACH1161363ACH424872ACH 424872 ACH424872 ACH 424872ACH 1161363 ACH1161363 ACH 1161363ACH 1161363 ACH1161363 ACH 1161363ACH 424872 ACH424872 ACH 424872A
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Application filed by Standard Telephone & Radio SafiledCriticalStandard Telephone & Radio Sa
Publication of CH424872ApublicationCriticalpatent/CH424872A/fr