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 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE247369T

Publications (1)

Publication Number Publication Date
DE245257C true DE245257C (enrdf_load_stackoverflow)

Family

ID=5935347

Family Applications (3)

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

Family Applications Before (2)

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

Country Status (1)

Country Link
DE (3) DE245257C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE226464C (enrdf_load_stackoverflow)
DE247369C (enrdf_load_stackoverflow)

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