DE146495C - - Google Patents

Info

Publication number
DE146495C
DE146495C DENDAT146495D DE146495DA DE146495C DE 146495 C DE146495 C DE 146495C DE NDAT146495 D DENDAT146495 D DE NDAT146495D DE 146495D A DE146495D A DE 146495DA DE 146495 C DE146495 C DE 146495C
Authority
DE
Germany
Prior art keywords
call
current
group
relay
type
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
DENDAT146495D
Other languages
German (de)
English (en)
Publication of DE146495C publication Critical patent/DE146495C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/12—Calling substations, e.g. by ringing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
DENDAT146495D Active DE146495C (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
DE146495C true DE146495C (cg-RX-API-DMAC7.html)

Family

ID=413767

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT146495D Active DE146495C (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
DE (1) DE146495C (cg-RX-API-DMAC7.html)

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