IT8019650A0 - TELECOMMUNICATIONS AND OTHER SWITCHING COMPLEX FOR DATA INTRODUCTION. BUTTONS FOR EQUIPMENT - Google Patents

TELECOMMUNICATIONS AND OTHER SWITCHING COMPLEX FOR DATA INTRODUCTION. BUTTONS FOR EQUIPMENT

Info

Publication number
IT8019650A0
IT8019650A0 IT8019650A IT1965080A IT8019650A0 IT 8019650 A0 IT8019650 A0 IT 8019650A0 IT 8019650 A IT8019650 A IT 8019650A IT 1965080 A IT1965080 A IT 1965080A IT 8019650 A0 IT8019650 A0 IT 8019650A0
Authority
IT
Italy
Prior art keywords
telecommunications
buttons
equipment
data introduction
switching complex
Prior art date
Application number
IT8019650A
Other languages
Italian (it)
Other versions
IT1193911B (en
Inventor
Lenaerts George Victor
Perks Roger
Dudley Phillip John
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of IT8019650A0 publication Critical patent/IT8019650A0/en
Application granted granted Critical
Publication of IT1193911B publication Critical patent/IT1193911B/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/144—Stacked arrangements of planar printed circuit boards
    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/7013—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard in which the movable contacts of each switch site or of a row of switch sites are formed in a single plate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
    • H05K1/053—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an inorganic insulating layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)
  • Telephonic Communication Services (AREA)
  • Input From Keyboards Or The Like (AREA)
IT19650/80A 1979-02-02 1980-02-01 BUTTON SWITCHING COMPLEX FOR TELECOMMUNICATION EQUIPMENT AND OTHER DATA INTRODUCTION APPARATUS IT1193911B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320,732A CA1100165A (en) 1979-02-02 1979-02-02 Pushbutton switch assembly for telecommunications and other input apparatus

Publications (2)

Publication Number Publication Date
IT8019650A0 true IT8019650A0 (en) 1980-02-01
IT1193911B IT1193911B (en) 1988-08-31

Family

ID=4113441

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19650/80A IT1193911B (en) 1979-02-02 1980-02-01 BUTTON SWITCHING COMPLEX FOR TELECOMMUNICATION EQUIPMENT AND OTHER DATA INTRODUCTION APPARATUS

Country Status (9)

Country Link
JP (1) JPS55124914A (en)
BE (1) BE881507A (en)
CA (1) CA1100165A (en)
DE (1) DE3003715A1 (en)
FR (1) FR2448218A1 (en)
GB (1) GB2043352B (en)
IT (1) IT1193911B (en)
NO (1) NO153197C (en)
SE (1) SE440567B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130159C2 (en) * 1981-07-30 1987-02-05 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Process for manufacturing printed circuit boards
JPH049706Y2 (en) * 1984-09-13 1992-03-11
GB2250380B (en) * 1990-11-27 1995-01-04 Ist Lab Ltd Switch apparatus
GB2308499B (en) * 1995-12-22 2000-03-15 Nokia Mobile Phones Ltd A contact membrane for a keypad assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990023A (en) * 1961-03-13 1965-04-22 Ass Elect Ind Improvements relating to printed electrical circults
US3843851A (en) * 1971-09-17 1974-10-22 Canon Kk A rigid compact electronic computer
US3898421A (en) * 1972-08-18 1975-08-05 Matsushita Electric Ind Co Ltd Push button switch with elastic conductive sheet
AR204336A1 (en) * 1973-12-17 1975-12-22 Texas Instruments Inc KEYBOARD PIECE
CA1019374A (en) * 1975-04-16 1977-10-18 Cornelis W. Reedyk Multi-contact push-button switch
CA1034175A (en) * 1975-04-16 1978-07-04 Pak-Jong Chu Multi-contact push-button switch
US3969600A (en) * 1975-06-11 1976-07-13 Burroughs Corporation Tactile feedback keyboard switch assembly and actuator

Also Published As

Publication number Publication date
FR2448218B1 (en) 1984-02-24
NO153197C (en) 1986-01-29
IT1193911B (en) 1988-08-31
NO153197B (en) 1985-10-21
NO800228L (en) 1980-08-04
CA1100165A (en) 1981-04-28
DE3003715A1 (en) 1980-08-14
FR2448218A1 (en) 1980-08-29
GB2043352B (en) 1983-04-13
GB2043352A (en) 1980-10-01
SE440567B (en) 1985-08-05
JPS55124914A (en) 1980-09-26
SE8000792L (en) 1980-08-03
BE881507A (en) 1980-08-01

Similar Documents

Publication Publication Date Title
EG14889A (en) Dispositif d'analyse simultanee
BR7908282A (en) SWITCHING EQUIPMENT
BE891519A (en) ID CARD
GB2004440B (en) Telecommunication switching system
IT8025142A0 (en) EQUIPMENT FOR VIDEO SIGNAL PROCESSING.
PT71677A (en) Digital telecommunications switching network with in-builtfault identification
GB2051519B (en) Telephone keyset
DE3161901D1 (en) Digital data switching device
GB2055274B (en) Telecommunications line circuit
IT8019650A0 (en) TELECOMMUNICATIONS AND OTHER SWITCHING COMPLEX FOR DATA INTRODUCTION. BUTTONS FOR EQUIPMENT
GB1540553A (en) Subscriber's telephone line equipment
FR2460078B1 (en) ELECTRONIC SUBSCRIBER
ZA791529B (en) Data exchange switching
ZA802576B (en) Telephone exchanges
GB2059669B (en) Telecommunication cables
CS765780A2 (en) Zpusob pripravy 1,2 bis (nikotinamido) propanu
ZA807678B (en) Subscriber's line interface
IT7922990A0 (en) DATA PROCESSING EQUIPMENT.
GB2018093A (en) Telephone subscriber's line circuit
GB1538017A (en) Subscriber's telephone line equipment
ES267457Y (en) "AN ELECTRIC SWITCHING DEVICE".
GB2073552B (en) Telecommunication system
GB2057818B (en) Telecommunication system
GB2057817B (en) Telecommunication system
BE884895A (en) DEVICES WITH MAGNETIC CIRCUIT