DE245257C - - Google Patents

Info

Publication number
DE245257C
DE245257C DENDAT245257D DE245257DA DE245257C DE 245257 C DE245257 C DE 245257C DE NDAT245257 D DENDAT245257 D DE NDAT245257D DE 245257D A DE245257D A DE 245257DA DE 245257 C DE245257 C DE 245257C
Authority
DE
Germany
Prior art keywords
key
organ
line
office
signals
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
DENDAT245257D
Other languages
German (de)
English (en)
Publication of DE245257C publication Critical patent/DE245257C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/26Devices for calling a subscriber
    • H04M1/52Arrangements wherein a dial or the like is mechanically coupled to a line selector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/002Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Interface Circuits In Exchanges (AREA)
DENDAT245257D Active DE245257C (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE247369T

Publications (1)

Publication Number Publication Date
DE245257C true DE245257C (cs)

Family

ID=5935347

Family Applications (3)

Application Number Title Priority Date Filing Date
DENDAT245257D Active DE245257C (cs)
DENDAT247369D Active DE247369C (cs)
DENDAT226464D Active DE226464C (cs)

Family Applications After (2)

Application Number Title Priority Date Filing Date
DENDAT247369D Active DE247369C (cs)
DENDAT226464D Active DE226464C (cs)

Country Status (1)

Country Link
DE (3) DE226464C (cs)

Also Published As

Publication number Publication date
DE247369C (cs)
DE226464C (cs)

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