NL364C - Telephone system with a self-functioning switchover system for extension units, in which the switching battery consisting of accumulators is charged during the conversation pauses, while during the calls it serves to supply the relays required for the switchovers. - Google Patents

Telephone system with a self-functioning switchover system for extension units, in which the switching battery consisting of accumulators is charged during the conversation pauses, while during the calls it serves to supply the relays required for the switchovers.

Info

Publication number
NL364C
NL364C NL169A NL169A NL364C NL 364 C NL364 C NL 364C NL 169 A NL169 A NL 169A NL 169 A NL169 A NL 169A NL 364 C NL364 C NL 364C
Authority
NL
Netherlands
Prior art keywords
during
switchovers
accumulators
calls
functioning
Prior art date
Application number
NL169A
Other languages
Dutch (nl)
Original Assignee
Hans Carl Steidle
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hans Carl Steidle filed Critical Hans Carl Steidle
Application granted granted Critical
Publication of NL364C publication Critical patent/NL364C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL169A 1911-06-06 1912-06-03 Telephone system with a self-functioning switchover system for extension units, in which the switching battery consisting of accumulators is charged during the conversation pauses, while during the calls it serves to supply the relays required for the switchovers. NL364C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE245316T 1911-06-06

Publications (1)

Publication Number Publication Date
NL364C true NL364C (en) 1914-10-01

Family

ID=75377585

Family Applications (1)

Application Number Title Priority Date Filing Date
NL169A NL364C (en) 1911-06-06 1912-06-03 Telephone system with a self-functioning switchover system for extension units, in which the switching battery consisting of accumulators is charged during the conversation pauses, while during the calls it serves to supply the relays required for the switchovers.

Country Status (3)

Country Link
DE (1) DE245316C (en)
FR (1) FR443854A (en)
NL (1) NL364C (en)

Also Published As

Publication number Publication date
FR443854A (en) 1912-10-04
DE245316C (en) 1912-04-03

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