CH468763A - Wahlaufnahmeeinrichtung in Fernmelde-, insbesondere in Fernsprechanlagen
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Wahlaufnahmeeinrichtung in Fernmelde-, insbesondere in Fernsprechanlagen
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Publication number
CH468763A
CH468763ACH1820767ACH1820767ACH468763ACH 468763 ACH468763 ACH 468763ACH 1820767 ACH1820767 ACH 1820767ACH 1820767 ACH1820767 ACH 1820767ACH 468763 ACH468763 ACH 468763A
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Application filed by Int Standard Electric CorpfiledCriticalInt Standard Electric Corp
Publication of CH468763ApublicationCriticalpatent/CH468763A/de