DE145229C - - Google Patents

Info

Publication number
DE145229C
DE145229C DENDAT145229D DE145229DA DE145229C DE 145229 C DE145229 C DE 145229C DE NDAT145229 D DENDAT145229 D DE NDAT145229D DE 145229D A DE145229D A DE 145229DA DE 145229 C DE145229 C DE 145229C
Authority
DE
Germany
Prior art keywords
line
quiescent current
telephone
stations
microphones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT145229D
Other languages
German (de)
English (en)
Publication of DE145229C publication Critical patent/DE145229C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
DENDAT145229D Active DE145229C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE145229C true DE145229C (enrdf_load_stackoverflow)

Family

ID=412593

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT145229D Active DE145229C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE145229C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
DE145229C (enrdf_load_stackoverflow)
DE2134125A1 (de) Fernbedienbare Telephonwähleinriehtung
DE233108C (enrdf_load_stackoverflow)
DE3244240C1 (de) Fernsprechstelle mit niedrigem Speiseleistungsverbrauch
DE146508C (enrdf_load_stackoverflow)
DE222228C (enrdf_load_stackoverflow)
DE272989C (enrdf_load_stackoverflow)
DE2520925A1 (de) Schaltungsanordnung zum mithoeren von gespraechen ohne mitsprechmoeglichkeit
DE21470C (de) Neuerungen in der dynamoelektrischen Telegraphie
DE193325C (enrdf_load_stackoverflow)
DE214267C (enrdf_load_stackoverflow)
DE231489C (enrdf_load_stackoverflow)
DE128712C (enrdf_load_stackoverflow)
DE179952C (enrdf_load_stackoverflow)
DE118874C (enrdf_load_stackoverflow)
DE202373C (enrdf_load_stackoverflow)
DE2741160A1 (de) Schaltungsanordnung fuer eine ruf-, tuerwechselsprech- und tueroeffneranlage
DE182053C (enrdf_load_stackoverflow)
DE171951C (enrdf_load_stackoverflow)
DE156815C (enrdf_load_stackoverflow)
DE300171C (enrdf_load_stackoverflow)
DE169626C (enrdf_load_stackoverflow)
DE171994C (enrdf_load_stackoverflow)
DE273677C (enrdf_load_stackoverflow)
DE268755C (enrdf_load_stackoverflow)