CH444235A - Anordnung zum Verbindungsaufbau in Fernmeldeanlagen, insbesondere Fernsprechanlagen
- Google Patents
Anordnung zum Verbindungsaufbau in Fernmeldeanlagen, insbesondere Fernsprechanlagen
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Publication number
CH444235A
CH444235ACH1214364ACH1214364ACH444235ACH 444235 ACH444235 ACH 444235ACH 1214364 ACH1214364 ACH 1214364ACH 1214364 ACH1214364 ACH 1214364ACH 444235 ACH444235 ACH 444235A
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Application filed by Witalis Grundin Ivan, Arne Anulf Karl, Alfred Berglund CarlfiledCriticalWitalis Grundin Ivan
Publication of CH444235ApublicationCriticalpatent/CH444235A/de