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IT1062576B - Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made - Google Patents

Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made

Info

Publication number
IT1062576B
IT1062576B IT4892576A IT4892576A IT1062576B IT 1062576 B IT1062576 B IT 1062576B IT 4892576 A IT4892576 A IT 4892576A IT 4892576 A IT4892576 A IT 4892576A IT 1062576 B IT1062576 B IT 1062576B
Authority
IT
Italy
Prior art keywords
printed circuit
push button
circuit boards
telephone
dial
Prior art date
Application number
IT4892576A
Other languages
Italian (it)
Original Assignee
Baldoni Carlo
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 Baldoni Carlo filed Critical Baldoni Carlo
Priority to IT4892576A priority Critical patent/IT1062576B/en
Priority to SE7608076A priority patent/SE7608076L/en
Priority to DD194034A priority patent/DD125368A5/xx
Priority to ES450119A priority patent/ES450119A1/en
Priority to GB30907/76A priority patent/GB1560292A/en
Priority to NL7608226A priority patent/NL7608226A/en
Priority to FR7622514A priority patent/FR2319255A1/en
Priority to GR51338A priority patent/GR60837B/en
Priority to DE2633419A priority patent/DE2633419B2/en
Priority to JP51088971A priority patent/JPS5234603A/en
Priority to US06/010,986 priority patent/US4267409A/en
Application granted granted Critical
Publication of IT1062576B publication Critical patent/IT1062576B/en

Links

Landscapes

  • Telephone Set Structure (AREA)

Abstract

The telephone push button dial has twelve buttons (17) arranged in four rows and three columns. It has a base (11) and a cover (13). The base having flaps (24, 24') placed below it and diametrically opposite to each other which are used for fixing the dial to the receiver. The surface of the cover (13) has holes formed in it into which the pushbuttons fit. Underneath the cover is a printed circuit board (18) having projecting elements (19) on it, which enclose an elastic device (21) having a projection (21'). The elements (19) form switch contacts for the push buttons (17). A second circuit board (27) is provided for the dial system electronic circuits.
IT4892576A 1975-07-15 1976-04-08 Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made IT1062576B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
IT4892576A IT1062576B (en) 1976-04-08 1976-04-08 Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made
SE7608076A SE7608076L (en) 1975-07-25 1976-07-15 TEN NUMBER PROVIDED, DIGITAL NUMBER RECEIVER OF KEY TYPE
ES450119A ES450119A1 (en) 1975-07-25 1976-07-23 Keyboard decade digital dial
GB30907/76A GB1560292A (en) 1975-07-25 1976-07-23 Telephones
DD194034A DD125368A5 (en) 1975-07-25 1976-07-23
NL7608226A NL7608226A (en) 1975-07-25 1976-07-23 KEYBOARD FOR DIGITAL DIALING IN THE TENDER SYSTEM.
FR7622514A FR2319255A1 (en) 1975-07-25 1976-07-23 DECIMAL NUMERIC DIAL WITH KEYPAD
GR51338A GR60837B (en) 1975-07-25 1976-07-24 Keyboard decade digital dial
DE2633419A DE2633419B2 (en) 1975-07-25 1976-07-24 Electronic keypad number switch
JP51088971A JPS5234603A (en) 1975-07-25 1976-07-26 Pushhbutton decimal digital dial
US06/010,986 US4267409A (en) 1975-07-15 1979-02-09 Keyboard decade digital dial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4892576A IT1062576B (en) 1976-04-08 1976-04-08 Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made

Publications (1)

Publication Number Publication Date
IT1062576B true IT1062576B (en) 1984-10-20

Family

ID=11269052

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4892576A IT1062576B (en) 1975-07-15 1976-04-08 Telephone receiver numerical push button dial - has printed circuit boards to which normal telephone connections can be made

Country Status (1)

Country Link
IT (1) IT1062576B (en)

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