CH219810A - Zeitmesser für Telephongespräche. - Google Patents

Zeitmesser für Telephongespräche.

Info

Publication number
CH219810A
CH219810A CH219810DA CH219810A CH 219810 A CH219810 A CH 219810A CH 219810D A CH219810D A CH 219810DA CH 219810 A CH219810 A CH 219810A
Authority
CH
Switzerland
Prior art keywords
timepiece
telephone calls
calls
telephone
Prior art date
Application number
Other languages
English (en)
Inventor
Brac A G
Original Assignee
Brac A G
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 Brac A G filed Critical Brac A G
Publication of CH219810A publication Critical patent/CH219810A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
CH219810D 1939-12-12 1939-12-12 Zeitmesser für Telephongespräche. CH219810A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH219810T 1939-12-12

Publications (1)

Publication Number Publication Date
CH219810A true CH219810A (de) 1942-02-28

Family

ID=4451348

Family Applications (1)

Application Number Title Priority Date Filing Date
CH219810D CH219810A (de) 1939-12-12 1939-12-12 Zeitmesser für Telephongespräche.

Country Status (1)

Country Link
CH (1) CH219810A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149348A1 (de) * 1981-12-12 1983-06-16 Agfa-Gevaert Ag, 5090 Leverkusen Gespraechzeitmess- und anzeigevorrichtung fuer fernsprechgeraete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149348A1 (de) * 1981-12-12 1983-06-16 Agfa-Gevaert Ag, 5090 Leverkusen Gespraechzeitmess- und anzeigevorrichtung fuer fernsprechgeraete

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