IT1077623B - Dispositivo telefonico libero per telefoni di chiamata d'emergenza,per esempio per colonne di chiamata di emergenza della polizia o vigili del fuoco - Google Patents

Dispositivo telefonico libero per telefoni di chiamata d'emergenza,per esempio per colonne di chiamata di emergenza della polizia o vigili del fuoco

Info

Publication number
IT1077623B
IT1077623B IT20119/77A IT2011977A IT1077623B IT 1077623 B IT1077623 B IT 1077623B IT 20119/77 A IT20119/77 A IT 20119/77A IT 2011977 A IT2011977 A IT 2011977A IT 1077623 B IT1077623 B IT 1077623B
Authority
IT
Italy
Prior art keywords
emergency call
telephone device
columns
phones
free telephone
Prior art date
Application number
IT20119/77A
Other languages
English (en)
Original Assignee
Elmeg
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 Elmeg filed Critical Elmeg
Application granted granted Critical
Publication of IT1077623B publication Critical patent/IT1077623B/it

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
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Telephone Function (AREA)
IT20119/77A 1976-02-10 1977-02-09 Dispositivo telefonico libero per telefoni di chiamata d'emergenza,per esempio per colonne di chiamata di emergenza della polizia o vigili del fuoco IT1077623B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2605086A DE2605086B2 (de) 1976-02-10 1976-02-10 Freisprecheinrichtung für Notruftelefone

Publications (1)

Publication Number Publication Date
IT1077623B true IT1077623B (it) 1985-05-04

Family

ID=5969454

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20119/77A IT1077623B (it) 1976-02-10 1977-02-09 Dispositivo telefonico libero per telefoni di chiamata d'emergenza,per esempio per colonne di chiamata di emergenza della polizia o vigili del fuoco

Country Status (7)

Country Link
AT (1) AT351607B (it)
CH (1) CH614575A5 (it)
DE (1) DE2605086B2 (it)
FR (1) FR2341237A1 (it)
GB (1) GB1567548A (it)
IT (1) IT1077623B (it)
SE (1) SE7701423L (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218878A (en) * 1988-02-12 1989-11-22 Mars Inc Telephone
GB2218302A (en) * 1988-05-07 1989-11-08 Crystalate Electronics Hands-free telephone
GB2310559B (en) * 1996-02-23 2000-09-20 Nokia Mobile Phones Ltd Audio output apparatus for a mobile communication device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE135160C (it) *
DE132355C (it) *
US2581251A (en) * 1949-08-09 1952-01-01 Bell Telephone Labor Inc Telephone booth
US3144513A (en) * 1961-05-26 1964-08-11 Sherron Metallic Corp Telephone booth
FR1429988A (fr) * 1965-04-16 1966-02-25 Proburbel Cabine d'insonorisation
DE2245881A1 (de) * 1972-09-19 1974-03-28 Manfred Unger Gegensprechanlage fuer motorradfahrer zum einbau in vollvisierhelme
DE7342649U (de) * 1973-11-30 1974-04-04 Neumann Elektronik Gmbh Notrufsäule mit Schwenktüre

Also Published As

Publication number Publication date
CH614575A5 (en) 1979-11-30
SE7701423L (sv) 1977-08-11
FR2341237A1 (fr) 1977-09-09
DE2605086B2 (de) 1979-10-04
GB1567548A (en) 1980-05-14
DE2605086A1 (de) 1977-08-11
AT351607B (de) 1979-08-10
ATA78377A (de) 1979-01-15

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