BE818661A - Touches et clavier pour des installations de telecommunication - Google Patents

Touches et clavier pour des installations de telecommunication

Info

Publication number
BE818661A
BE818661A BE147441A BE147441A BE818661A BE 818661 A BE818661 A BE 818661A BE 147441 A BE147441 A BE 147441A BE 147441 A BE147441 A BE 147441A BE 818661 A BE818661 A BE 818661A
Authority
BE
Belgium
Prior art keywords
keypad
keys
telecommunication systems
telecommunication
systems
Prior art date
Application number
BE147441A
Other languages
English (en)
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
Priority claimed from DE19732357887 external-priority patent/DE2357887C3/de
Application filed filed Critical
Publication of BE818661A publication Critical patent/BE818661A/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
BE147441A 1973-11-17 1974-08-09 Touches et clavier pour des installations de telecommunication BE818661A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732357887 DE2357887C3 (de) 1973-11-17 Tasten und Tastenfeld fur Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
BE818661A true BE818661A (fr) 1974-12-02

Family

ID=5898601

Family Applications (1)

Application Number Title Priority Date Filing Date
BE147441A BE818661A (fr) 1973-11-17 1974-08-09 Touches et clavier pour des installations de telecommunication

Country Status (7)

Country Link
BE (1) BE818661A (fr)
FR (1) FR2251901A1 (fr)
GB (1) GB1462447A (fr)
IE (1) IE40116B1 (fr)
IT (1) IT1025577B (fr)
LU (1) LU70751A1 (fr)
NL (1) NL7411257A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135655A1 (de) * 1981-09-09 1983-03-24 Rafi Gmbh & Co Elektrotechnische Spezialfabrik, 7981 Berg "drucktaster fuer elektrische geraete"
GB2120853A (en) * 1982-05-24 1983-12-07 Illinois Tool Works Liquid contaminant resistant electric switches
DE19954098C1 (de) * 1999-11-10 2001-02-01 Siemens Ag Drucktaster mit Wechslerfunktion

Also Published As

Publication number Publication date
FR2251901A1 (fr) 1975-06-13
NL7411257A (nl) 1975-05-21
IT1025577B (it) 1978-08-30
DE2357887A1 (de) 1975-05-28
GB1462447A (en) 1977-01-26
IE40116L (en) 1975-05-17
DE2357887B2 (de) 1976-12-09
LU70751A1 (fr) 1975-01-02
IE40116B1 (en) 1979-03-14

Similar Documents

Publication Publication Date Title
NL164404C (nl) Toetsenbordschakeling.
BE806007A (fr) Clavier pour un dispositif de selection pour des systemes de telecommunication
FR2294485A1 (fr) Clavier de commutation
BE863476A (fr) Clavier a touches et dispositif de commutation pour un tel clavier
FR1513079A (fr) Mécanisme de commutation pour un clavier
BE823387A (fr) Clavier d'introduction de donnees
CH536518A (fr) Commutateur à touche pour clavier
FR2304161A1 (fr) Interrupteur electrique, notamment pour touches de calculatrices electroniques
BE818661A (fr) Touches et clavier pour des installations de telecommunication
IT1034648B (it) Impianto telefonico a tastiera
ZA75400B (en) Electronic time switching telephone system
CA992228A (en) Key telephone line circuit
BE818163A (fr) Selecteur de commutation a touches pour appareils telephoniques
CH549835A (fr) Commutateur a touche pour clavier.
BE813774A (fr) Appareils telephoniques et couvercles amovibles pour ces appareils
IT1011936B (it) Apparecchio telefonico a tastiera
JPS5294005A (en) Key telephone system
NL7611889A (nl) Telefoonomschakelketen en zelfomschakelaar die een dergelijke keten bevat.
BE794054A (fr) Clavier a touches
JPS52129205A (en) Device for limiting originating call for touch tone telephone set
FR2279280A1 (fr) Module de clavier a touches pour des appareils telephoniques
JPS5330802A (en) Key telephone system
JPS5345101A (en) Key telephone system
JPS52136509A (en) Key telephone system
ZA743457B (en) Register for telephone switching systems