DE233900C - - Google Patents

Info

Publication number
DE233900C
DE233900C DENDAT233900D DE233900DA DE233900C DE 233900 C DE233900 C DE 233900C DE NDAT233900 D DENDAT233900 D DE NDAT233900D DE 233900D A DE233900D A DE 233900DA DE 233900 C DE233900 C DE 233900C
Authority
DE
Germany
Prior art keywords
office
extension
exchange
connection
switch
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
DENDAT233900D
Other languages
German (de)
English (en)
Publication of DE233900C publication Critical patent/DE233900C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M5/00Manual exchanges
    • H04M5/08Manual exchanges using connecting means other than cords

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
DENDAT233900D Active DE233900C (https=)

Publications (1)

Publication Number Publication Date
DE233900C true DE233900C (https=)

Family

ID=493804

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT233900D Active DE233900C (https=)

Country Status (1)

Country Link
DE (1) DE233900C (https=)

Similar Documents

Publication Publication Date Title
DE233900C (https=)
DE397817C (de) Schaltungsanordnung fuer Fernsprechanlagen mit mehreren Vermittlungsstellen und Dienstleitungsbetrieb
DE158371C (https=)
DE197349C (https=)
DE455931C (de) Schaltungsanordnung fuer Fernsprechanlagen
DE165081C (https=)
DE234687C (https=)
DE238751C (https=)
DE197313C (https=)
DE569061C (de) Schaltungsanordnung fuer Fernsprechanlagen, bei denen an jeder Sprechstelle ein Besetztzeichen vorgesehen ist
DE196921C (https=)
DE169196C (https=)
DE193893C (https=)
DE190640C (https=)
DE176821C (https=)
DE150660C (https=)
AT147651B (de) Schaltungsanordnung für Fernsprechanlagen.
DE163168C (https=)
DE176402C (https=)
DE198438C (https=)
DE175622C (https=)
DE186053C (https=)
DE321702C (de) Heulsignaleinrichtung
DE163853C (https=)
DE220721C (https=)