YU216271A - Exponentially formed sound conductor for electro-acoustic transverters at telephone apparatus which emits a two-frequency tone call - Google Patents

Exponentially formed sound conductor for electro-acoustic transverters at telephone apparatus which emits a two-frequency tone call

Info

Publication number
YU216271A
YU216271A YU216271A YU216271A YU216271A YU 216271 A YU216271 A YU 216271A YU 216271 A YU216271 A YU 216271A YU 216271 A YU216271 A YU 216271A YU 216271 A YU216271 A YU 216271A
Authority
YU
Yugoslavia
Prior art keywords
transverters
exponentially
electro
acoustic
emits
Prior art date
Application number
YU216271A
Other languages
English (en)
Other versions
YU34074B (enrdf_load_stackoverflow
Inventor
Guenter Andres
Andres Guenter
Dodrimong Horst
Horst Dodrimong
Kaszynski Gert
Gert Kaszynski
Schoenhoff Juergen
Juergen Schoenhoff
Thiel Bernhard
Bernhard Thiel
Original Assignee
Inst Fuer Nachrichtentechnik
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 Inst Fuer Nachrichtentechnik filed Critical Inst Fuer Nachrichtentechnik
Publication of YU216271A publication Critical patent/YU216271A/xx
Publication of YU34074B publication Critical patent/YU34074B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
YU216271A 1970-08-26 1971-08-24 Exponentially formed sound conductor for electro-acoustic transverters at telephone apparatus which emits a two-frequency tone call YU216271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD14972270 1970-08-26

Publications (2)

Publication Number Publication Date
YU216271A true YU216271A (en) 1978-05-15
YU34074B YU34074B (enrdf_load_stackoverflow) 1978-10-31

Family

ID=5482879

Family Applications (1)

Application Number Title Priority Date Filing Date
YU216271A YU216271A (en) 1970-08-26 1971-08-24 Exponentially formed sound conductor for electro-acoustic transverters at telephone apparatus which emits a two-frequency tone call

Country Status (6)

Country Link
BG (1) BG20058A1 (enrdf_load_stackoverflow)
CS (1) CS177913B1 (enrdf_load_stackoverflow)
DE (1) DE2135804A1 (enrdf_load_stackoverflow)
HU (1) HU163415B (enrdf_load_stackoverflow)
SU (1) SU500599A1 (enrdf_load_stackoverflow)
YU (1) YU216271A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
HU163415B (enrdf_load_stackoverflow) 1973-08-28
SU500599A1 (ru) 1976-01-25
BG20058A1 (enrdf_load_stackoverflow) 1975-10-30
CS177913B1 (enrdf_load_stackoverflow) 1977-08-31
YU34074B (enrdf_load_stackoverflow) 1978-10-31
DE2135804A1 (de) 1972-03-02

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