IT972200B - Keyboard for a device if the lesson of cations Telecommunication systems - Google Patents

Keyboard for a device if the lesson of cations Telecommunication systems

Info

Publication number
IT972200B
IT972200B IT3051872A IT3051872A IT972200B IT 972200 B IT972200 B IT 972200B IT 3051872 A IT3051872 A IT 3051872A IT 3051872 A IT3051872 A IT 3051872A IT 972200 B IT972200 B IT 972200B
Authority
IT
Italy
Prior art keywords
lesson
cations
keyboard
telecommunication systems
telecommunication
Prior art date
Application number
IT3051872A
Other languages
Italian (it)
Inventor
G Rivetta
E Mariotti
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT3051872A priority Critical patent/IT972200B/en
Priority claimed from AU61253/73A external-priority patent/AU478070B2/en
Application granted granted Critical
Publication of IT972200B publication Critical patent/IT972200B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/02Constructional features of telephone sets
    • H04M1/23Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
IT3051872A 1972-10-16 1972-10-16 Keyboard for a device if the lesson of cations Telecommunication systems IT972200B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT3051872A IT972200B (en) 1972-10-16 1972-10-16 Keyboard for a device if the lesson of cations Telecommunication systems

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
IT3051872A IT972200B (en) 1972-10-16 1972-10-16 Keyboard for a device if the lesson of cations Telecommunication systems
ZA737102A ZA7307102B (en) 1972-10-16 1973-09-05 Keyboard for a dialling device for telecommunication systems
ES418704A ES418704A1 (en) 1972-10-16 1973-09-12 Switch pushbutton-type digit keyboard switch with leaf spring contract and actuator biasing means on common conductive frame
BR740573A BR7307405D0 (en) 1972-10-16 1973-09-24 Keyboard for dialing device device for telecommunication systems
CH1380973A CH570029A5 (en) 1972-10-16 1973-09-26
FR7335556A FR2203238B1 (en) 1972-10-16 1973-10-04
NL7313976A NL7313976A (en) 1972-10-16 1973-10-10
AU61253/73A AU478070B2 (en) 1972-10-19 1973-10-11 Process forthe hydroperoxidation of branched alkanes ina plurality of stages, comprising washings between the said stages
GB4778673A GB1433184A (en) 1972-10-16 1973-10-12 Push button keyboard switch assembly for a telecommunication system
BE136625A BE806007A (en) 1972-10-16 1973-10-12 Key for a selection device for telecommunication systems
DE19732351367 DE2351367C2 (en) 1972-10-16 1973-10-12
JP11527573A JPS5619146B2 (en) 1972-10-16 1973-10-13
CA183,320A CA994021A (en) 1972-10-16 1973-10-15 Keyboard for a dialling device for telecommunication systems
US40622073 US3870840A (en) 1972-10-16 1973-10-15 Switch pushbutton-type digit keyboard switch with leaf spring contract and actuator biasing means on common conductive frame

Publications (1)

Publication Number Publication Date
IT972200B true IT972200B (en) 1974-05-20

Family

ID=11229895

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3051872A IT972200B (en) 1972-10-16 1972-10-16 Keyboard for a device if the lesson of cations 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) ZA7307102B (en)

Families Citing this family (31)

* 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
DE2460485B2 (en) * 1974-12-20 1976-10-07 Pushbutton Switches
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
US4029916A (en) * 1975-04-18 1977-06-14 Northern Electric Company Limited Multi-contact push-button switch and plural embodiment for keyboard switch assembly
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
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
FR2336012B1 (en) * 1975-12-17 1979-10-05 Picart Lebas Telephones
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
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 Pushbutton for priority over at on a circuit board arranged circuits
ES233588Y (en) * 1978-01-27 1978-07-16 Keyboard 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 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 Nuernberg, De
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
US7391861B2 (en) * 2000-05-22 2008-06-24 Digit Wireless, Llc Input devices and their use
US7126498B2 (en) * 2002-02-27 2006-10-24 Digit Wireless, Llc Keypad construction
CA2479052C (en) * 2002-05-23 2005-11-22 Digit Wireless, Llc Keypads and key switches
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

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, notably selection means for coded dial
DE1562149A1 (en) * 1968-01-31 1970-03-12 Telefonbau & Normalzeit Gmbh Keypad You telecommunications equipment
DE1807559A1 (en) * 1968-11-07 1970-05-27 Standard Elektrik Lorenz Ag Button set for telecommunications equipment
US3600528A (en) * 1969-09-25 1971-08-17 Lematex Corp Multiple switch construction
DE2120121A1 (en) * 1970-06-12 1971-12-30 Inst Fuer Nachrichtentechnik
GB1400209A (en) * 1971-09-06 1975-07-16 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
US3870840A (en) 1975-03-11
ZA7307102B (en) 1974-11-27
BE806007A (en) 1974-02-01
DE2351367C2 (en) 1983-01-13
FR2203238A1 (en) 1974-05-10
BE806007A1 (en)
JPS5619146B2 (en) 1981-05-06
CH570029A5 (en) 1975-11-28
ES418704A1 (en) 1976-02-16
CA994021A (en) 1976-07-27
GB1433184A (en) 1976-04-22
CA994021A1 (en)
DE2351367A1 (en) 1974-05-09
NL7313976A (en) 1974-04-18
FR2203238B1 (en) 1978-09-22
BR7307405D0 (en) 1974-08-29
JPS4974806A (en) 1974-07-19
AU6125373A (en) 1975-04-17

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