FR2341237A1 - Dispositif permettant de parler librement, pour telephones pour appels de secours - Google Patents

Dispositif permettant de parler librement, pour telephones pour appels de secours

Info

Publication number
FR2341237A1
FR2341237A1 FR7703796A FR7703796A FR2341237A1 FR 2341237 A1 FR2341237 A1 FR 2341237A1 FR 7703796 A FR7703796 A FR 7703796A FR 7703796 A FR7703796 A FR 7703796A FR 2341237 A1 FR2341237 A1 FR 2341237A1
Authority
FR
France
Prior art keywords
telephones
device allowing
emergency calls
speaking
allowing freely
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR7703796A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELMEG Elektro Mechanik GmbH
Original Assignee
ELMEG Elektro Mechanik GmbH
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 Elektro Mechanik GmbH filed Critical ELMEG Elektro Mechanik GmbH
Publication of FR2341237A1 publication Critical patent/FR2341237A1/fr
Withdrawn legal-status Critical Current

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)
FR7703796A 1976-02-10 1977-02-10 Dispositif permettant de parler librement, pour telephones pour appels de secours Withdrawn FR2341237A1 (fr)

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
FR2341237A1 true FR2341237A1 (fr) 1977-09-09

Family

ID=5969454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703796A Withdrawn FR2341237A1 (fr) 1976-02-10 1977-02-10 Dispositif permettant de parler librement, pour telephones pour appels de secours

Country Status (7)

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

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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132355C (de) *
DE135160C (de) *
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132355C (de) *
DE135160C (de) *
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
CH586438A5 (en) * 1973-11-30 1977-03-31 Neumann Elektronik Gmbh Emergency calling post without energy supply - has hinged door giving access to telephone and linkage drive operating dialling arrangement (SW 30.6.75)

Also Published As

Publication number Publication date
IT1077623B (it) 1985-05-04
SE7701423L (sv) 1977-08-11
CH614575A5 (en) 1979-11-30
DE2605086B2 (de) 1979-10-04
DE2605086A1 (de) 1977-08-11
AT351607B (de) 1979-08-10
ATA78377A (de) 1979-01-15
GB1567548A (en) 1980-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse