CH303467A - Telephonograph. - Google Patents

Telephonograph.

Info

Publication number
CH303467A
CH303467A CH303467DA CH303467A CH 303467 A CH303467 A CH 303467A CH 303467D A CH303467D A CH 303467DA CH 303467 A CH303467 A CH 303467A
Authority
CH
Switzerland
Prior art keywords
telephonograph
Prior art date
Application number
Other languages
English (en)
Inventor
Treuunternehmen Promundo
Original Assignee
Treuunternehmen Promundo
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 Treuunternehmen Promundo filed Critical Treuunternehmen Promundo
Publication of CH303467A publication Critical patent/CH303467A/de

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
    • H04M1/6515—Recording arrangements for recording a message from the calling party using magnetic tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Toys (AREA)
CH303467D 1951-12-31 1950-12-31 Telephonograph. CH303467A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US264318A US2782255A (en) 1951-12-31 1951-12-31 Telephonograph

Publications (1)

Publication Number Publication Date
CH303467A true CH303467A (de) 1954-11-30

Family

ID=23005511

Family Applications (1)

Application Number Title Priority Date Filing Date
CH303467D CH303467A (de) 1951-12-31 1950-12-31 Telephonograph.

Country Status (2)

Country Link
US (1) US2782255A (de)
CH (1) CH303467A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067289A (en) * 1956-07-25 1962-12-04 Electronic Secretary Ind Inc Integrating control timer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE417017A (de) * 1935-08-15
US2284173A (en) * 1936-01-31 1942-05-26 Soukup Johann Apparatus for recording and reproducing telephone messages
US2374842A (en) * 1941-03-18 1945-05-01 Telephone Answering And Record Recording and reproducing apparatus
US2519597A (en) * 1943-08-06 1950-08-22 Freeman H Owens Disk record and film record sound reproducer
US2490771A (en) * 1945-09-06 1949-12-13 Magnetone Inc Magnetic recording and reproducing apparatus using an endless spirally wound magnetic tape
BE484267A (de) * 1947-08-09
US2549548A (en) * 1947-12-10 1951-04-17 Zimmermann Max Kurt Von System for automatically transmitting and receiving telephone messages

Also Published As

Publication number Publication date
US2782255A (en) 1957-02-19

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