GB344865A - Improvements in and relating to incandescent electric lamps - Google Patents

Improvements in and relating to incandescent electric lamps

Info

Publication number
GB344865A
GB344865A GB3187430A GB3187430A GB344865A GB 344865 A GB344865 A GB 344865A GB 3187430 A GB3187430 A GB 3187430A GB 3187430 A GB3187430 A GB 3187430A GB 344865 A GB344865 A GB 344865A
Authority
GB
United Kingdom
Prior art keywords
incandescent
electric lamps
class
electric
relating
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
GB3187430A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3187430A priority Critical patent/GB344865A/en
Publication of GB344865A publication Critical patent/GB344865A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Resistance Heating (AREA)

Abstract

344,865. Forming electric lamp bulbs. FENN, B. B., Fenbo House, Gt. Chapel Street, Oxford Street, London. Oct. 2, 1929, No. 31874/30. Divided on 339,036, [Class 39 (ii), Electric lamps, Incandescent]. Drawings to Specification. [Class 56.] To reduce glare, substantially the whole of the exterior surface of an electric incandescent lamp bulb is provided with a multiplicity of separate rounded protuberances or separate pits. Specifications 323,017, [Class 39 (ii), Electric lamps, Incandescent], and 339,036 are referred to.
GB3187430A 1929-10-02 1929-10-02 Improvements in and relating to incandescent electric lamps Expired GB344865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3187430A GB344865A (en) 1929-10-02 1929-10-02 Improvements in and relating to incandescent electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3187430A GB344865A (en) 1929-10-02 1929-10-02 Improvements in and relating to incandescent electric lamps

Publications (1)

Publication Number Publication Date
GB344865A true GB344865A (en) 1931-03-02

Family

ID=10329686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3187430A Expired GB344865A (en) 1929-10-02 1929-10-02 Improvements in and relating to incandescent electric lamps

Country Status (1)

Country Link
GB (1) GB344865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004564B (en) * 1955-06-22 1957-03-21 Hermann Linnes Headlights with a non-dazzling bulb

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004564B (en) * 1955-06-22 1957-03-21 Hermann Linnes Headlights with a non-dazzling bulb

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