CA994021A - Keyboard for a dialling device for telecommunication systems - Google Patents

Keyboard for a dialling device for telecommunication systems

Info

Publication number
CA994021A
CA994021A CA183,320A CA183320A CA994021A CA 994021 A CA994021 A CA 994021A CA 183320 A CA183320 A CA 183320A CA 994021 A CA994021 A CA 994021A
Authority
CA
Canada
Prior art keywords
keyboard
telecommunication systems
dialling device
dialling
telecommunication
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.)
Expired
Application number
CA183,320A
Other versions
CA183320S (en
Inventor
Egidio Marcotti
Gianfranco Rivetta
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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 Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Application granted granted Critical
Publication of CA994021A publication Critical patent/CA994021A/en
Expired 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
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)
CA183,320A 1972-10-16 1973-10-15 Keyboard for a dialling device for telecommunication systems Expired CA994021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30518/72A IT972200B (en) 1972-10-16 1972-10-16 KEYBOARD FOR A SECTION DEVICE FOR TELECOMMUNICATION SYSTEMS CAZIONI

Publications (1)

Publication Number Publication Date
CA994021A true CA994021A (en) 1976-07-27

Family

ID=11229895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,320A Expired CA994021A (en) 1972-10-16 1973-10-15 Keyboard for a dialling device for telecommunication systems

Country Status (13)

Country Link
US (1) US3870840A (en)
JP (1) JPS5619146B2 (en)
BE (1) BE806007A (en)
BR (1) BR7307405D0 (en)
CA (1) CA994021A (en)
CH (1) CH570029A5 (en)
DE (1) DE2351367C2 (en)
ES (1) ES418704A1 (en)
FR (1) FR2203238B1 (en)
GB (1) GB1433184A (en)
IT (1) IT972200B (en)
NL (1) NL7313976A (en)
ZA (1) ZA737102B (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT337275B (en) * 1974-05-07 1977-06-27 Preh Elektro Feinmechanik ULTRASONIC REMOTE CONTROL DEVICE
US4063054A (en) * 1974-11-22 1977-12-13 Canon Kabushiki Kaisha Key switch
GB1529804A (en) * 1974-12-11 1978-10-25 Exxon Research Engineering Co Purification of pollutant-containing gases
US4032728A (en) * 1974-12-20 1977-06-28 Olympia Werke Ag Push button switch
US3971902A (en) * 1975-03-21 1976-07-27 Amp Incorporated Keyboard switch assembly having one piece plural pushbutton actuator and resilient mounting structure for plural cantilever beam contacts
US3996429A (en) * 1975-04-18 1976-12-07 Northern Electric Company Limited Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
US4029916A (en) * 1975-04-18 1977-06-14 Northern Electric Company Limited Multi-contact push-button switch and plural embodiment for keyboard switch assembly
US3999025A (en) * 1975-07-30 1976-12-21 Burroughs Corporation Low profile tactile feedback keyboard switch assembly
US4024368A (en) * 1975-10-02 1977-05-17 Litton Systems, Inc. Switch assembly having selective actuation sensitivity
FR2336012A1 (en) * 1975-12-17 1977-07-15 Picart Lebas Telephones MULTI-FREQUENCY DIALING DEVICE FOR KEYPAD TELEPHONE SETTINGS
US4062181A (en) * 1976-01-16 1977-12-13 Hughes Aircraft Company Combination watch-calculator construction
US4099037A (en) * 1976-06-21 1978-07-04 National Semiconductor Corporation Key board switch assembly having canti-levered leaf spring contact assembly on common conductive frame
JPS5824347Y2 (en) * 1976-09-10 1983-05-25 アルプス電気株式会社 push button switch
US4120044A (en) * 1976-09-16 1978-10-10 Rca Corporation Data encoding keyboard
JPS5355412U (en) * 1976-10-12 1978-05-12
SE402654B (en) * 1976-12-21 1978-07-10 Ericsson Telefon Ab L M PUSH BUTTON SWITCH FOR USE IN CIRCUIT ORGANIZED ON A CIRCUIT CARD
ES233588Y (en) * 1978-01-27 1978-07-16 KEYBOARD FOR PHONES.
US4192976A (en) * 1978-12-29 1980-03-11 Gte Automatic Electric Laboratories Incorporated Pushbutton call transmitter
DE2950665A1 (en) * 1979-12-15 1981-06-19 Standard Elektrik Lorenz Ag, 7000 Stuttgart KEY DIALING BLOCK FOR TELEPHONE UNITS
US4415983A (en) * 1980-03-04 1983-11-15 Texas Instruments Incorporated System and method for aligning a display device
US4371760A (en) * 1981-03-05 1983-02-01 Apple Computer, Inc. Keyboard switch having combined actuator and jumper contact structure
US4496929A (en) * 1983-04-11 1985-01-29 Mcgraw-Edison Company Low current indicating fuse
DE8504084U1 (en) * 1985-02-14 1990-02-01 TA Triumph-Adler AG, 8500 Nürnberg Push button switch
US5422447A (en) * 1992-09-01 1995-06-06 Key Tronic Corporation Keyboard with full-travel, self-leveling keyswitches and return mechanism keyswitch
US6350970B1 (en) * 1999-05-07 2002-02-26 Salton, Inc. Appliance switching mechanism and method
ATE289115T1 (en) * 2000-05-22 2005-02-15 Digit Wireless Llc INPUT DEVICES AND THEIR USE
US7126498B2 (en) * 2002-02-27 2006-10-24 Digit Wireless, Llc Keypad construction
ATE436083T1 (en) * 2002-05-23 2009-07-15 Digit Wireless Llc ELECTRICAL KEY SWITCH
TWI271638B (en) * 2005-05-03 2007-01-21 Benq Corp Method and related apparatus for inputting characters
JP5004715B2 (en) * 2007-08-10 2012-08-22 キヤノン株式会社 Electronics
DE102017114189A1 (en) * 2017-06-27 2018-12-27 Cherry Gmbh Carrier element for a keyboard, keyboard and method for producing a keyboard
DE102019106868A1 (en) * 2019-03-18 2020-09-24 Minimax Viking Research & Development Gmbh Carrier component of a housing of a hazard alarm control center and a hazard alarm control center, preferably an intrusion, fire alarm and / or extinguishing control center

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109071A (en) * 1959-12-18 1963-10-29 Bell Telephone Labor Inc Telephone call transmitter
US3131265A (en) * 1960-12-30 1964-04-28 Gen Motors Corp Electric switch having a plurality of pivotally mounted switch actuators
DE1168496B (en) * 1963-02-01 1964-04-23 Siemens Ag Key-controlled device for electrical coding for telecommunications systems, in particular dialing device for coded dialing
DE1562149A1 (en) * 1968-01-31 1970-03-12 Telefonbau & Normalzeit Gmbh Dial keypad for telecommunication systems
DE1807559A1 (en) * 1968-11-07 1970-05-27 Standard Elek K Lorenz Ag Set of buttons for telecommunication systems
US3600528A (en) * 1969-09-25 1971-08-17 Lematex Corp Multiple switch construction
DE2120121A1 (en) * 1970-06-12 1971-12-30 Inst Fuer Nachrichtentechnik Keypad for sending out code signals for terminals in information processing systems, in particular for telephone sets in telephone systems
US3826882A (en) * 1971-09-06 1974-07-30 Olivetti & Co Spa Electric keyboards for office machines
US3786205A (en) * 1972-05-11 1974-01-15 Becton Dickinson Co Keyboard switch assembly with movable, multi-contact means and associated swinger portions

Also Published As

Publication number Publication date
NL7313976A (en) 1974-04-18
IT972200B (en) 1974-05-20
CH570029A5 (en) 1975-11-28
FR2203238B1 (en) 1978-09-22
BE806007A (en) 1974-02-01
AU6125373A (en) 1975-04-17
ES418704A1 (en) 1976-02-16
ZA737102B (en) 1974-11-27
JPS5619146B2 (en) 1981-05-06
JPS4974806A (en) 1974-07-19
GB1433184A (en) 1976-04-22
FR2203238A1 (en) 1974-05-10
BR7307405D0 (en) 1974-08-29
US3870840A (en) 1975-03-11
DE2351367C2 (en) 1983-01-13
DE2351367A1 (en) 1974-05-09

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