GB1030141A - Illuminated telephone dial - Google Patents

Illuminated telephone dial

Info

Publication number
GB1030141A
GB1030141A GB922464A GB922464A GB1030141A GB 1030141 A GB1030141 A GB 1030141A GB 922464 A GB922464 A GB 922464A GB 922464 A GB922464 A GB 922464A GB 1030141 A GB1030141 A GB 1030141A
Authority
GB
United Kingdom
Prior art keywords
telephone dial
dial
behind
illuminated
illuminated telephone
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
GB922464A
Inventor
Walter Percival Greenslade
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones 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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB922464A priority Critical patent/GB1030141A/en
Publication of GB1030141A publication Critical patent/GB1030141A/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
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

A self-luminous phosphor-coated, tritium-filled glass tube, is mounted on a telephone instrument. The tube may be mounted in a padded, reflective groove closed by a diffusing plate, positioned either behind the telephone dial, or behind a set of characters on a ring of larger radius than the dial, or both.
GB922464A 1964-03-04 1964-03-04 Illuminated telephone dial Expired GB1030141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB922464A GB1030141A (en) 1964-03-04 1964-03-04 Illuminated telephone dial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB922464A GB1030141A (en) 1964-03-04 1964-03-04 Illuminated telephone dial

Publications (1)

Publication Number Publication Date
GB1030141A true GB1030141A (en) 1966-05-18

Family

ID=9867811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB922464A Expired GB1030141A (en) 1964-03-04 1964-03-04 Illuminated telephone dial

Country Status (1)

Country Link
GB (1) GB1030141A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436473A1 (en) * 1984-10-05 1986-04-10 geb. Rau Gisela 2082 Moorrege Holz Telephone set with dial or dialling keys
US4618917A (en) * 1984-08-31 1986-10-21 American Phone Products Integral phone light accessory
GB2319667A (en) * 1996-11-26 1998-05-27 Nec Corp Indicating the function of operating elements
EP1558009A1 (en) * 2004-01-22 2005-07-27 Sony Ericsson Mobile Communications AB Portable electronic equipment having an illuminated area

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618917A (en) * 1984-08-31 1986-10-21 American Phone Products Integral phone light accessory
DE3436473A1 (en) * 1984-10-05 1986-04-10 geb. Rau Gisela 2082 Moorrege Holz Telephone set with dial or dialling keys
GB2319667A (en) * 1996-11-26 1998-05-27 Nec Corp Indicating the function of operating elements
EP1558009A1 (en) * 2004-01-22 2005-07-27 Sony Ericsson Mobile Communications AB Portable electronic equipment having an illuminated area

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