CH259965A - Device on telephonographs to switch them off after playback has taken place. - Google Patents

Device on telephonographs to switch them off after playback has taken place.

Info

Publication number
CH259965A
CH259965A CH259965DA CH259965A CH 259965 A CH259965 A CH 259965A CH 259965D A CH259965D A CH 259965DA CH 259965 A CH259965 A CH 259965A
Authority
CH
Switzerland
Prior art keywords
telephonographs
playback
switch
taken place
taken
Prior art date
Application number
Other languages
German (de)
Inventor
Trust Daphne Investment
Original Assignee
Trust Daphne Investment
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 Trust Daphne Investment filed Critical Trust Daphne Investment
Publication of CH259965A publication Critical patent/CH259965A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
CH259965D 1947-07-30 1947-07-30 Device on telephonographs to switch them off after playback has taken place. CH259965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH656922X 1947-07-30

Publications (1)

Publication Number Publication Date
CH259965A true CH259965A (en) 1949-02-15

Family

ID=4526574

Family Applications (1)

Application Number Title Priority Date Filing Date
CH259965D CH259965A (en) 1947-07-30 1947-07-30 Device on telephonographs to switch them off after playback has taken place.

Country Status (4)

Country Link
BE (1) BE484143A (en)
CH (1) CH259965A (en)
FR (1) FR969548A (en)
GB (1) GB656922A (en)

Also Published As

Publication number Publication date
GB656922A (en) 1951-09-05
BE484143A (en)
FR969548A (en) 1950-12-21

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