GB367493A - Improvements in and relating to incandescent electric lamps - Google Patents

Improvements in and relating to incandescent electric lamps

Info

Publication number
GB367493A
GB367493A GB3768430A GB3768430A GB367493A GB 367493 A GB367493 A GB 367493A GB 3768430 A GB3768430 A GB 3768430A GB 3768430 A GB3768430 A GB 3768430A GB 367493 A GB367493 A GB 367493A
Authority
GB
United Kingdom
Prior art keywords
incandescent
electric
electric lamps
relating
bulb
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
GB3768430A
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 GB3768430A priority Critical patent/GB367493A/en
Publication of GB367493A publication Critical patent/GB367493A/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

  • Electric Ovens (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

367,493. Electric incandescent lamp bulbs. FENN, B. B., Fenbo House, Great Chapel Street, Oxford Street, London. Dec. 13, 1930, No. 37684. [Class 39 (ii).] To facilitate the positioning of the stem and filament within incandescent electric lamp bulbs which are frosted, stippled, or provided with a series of protuberances or pits to render them suitable for antidazzle purposes, one or more clear transparent panels 6 are formed near to the open end of the bulb 1, so that the interior can be viewed by the operator before the bulb is sealed. Specifications 323,017, 339,036, [both in Class 39 (ii), Electric lamps, Incandescent], and 344,865 are referred to.
GB3768430A 1930-12-13 1930-12-13 Improvements in and relating to incandescent electric lamps Expired GB367493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3768430A GB367493A (en) 1930-12-13 1930-12-13 Improvements in and relating to incandescent electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3768430A GB367493A (en) 1930-12-13 1930-12-13 Improvements in and relating to incandescent electric lamps

Publications (1)

Publication Number Publication Date
GB367493A true GB367493A (en) 1932-02-25

Family

ID=10398249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3768430A Expired GB367493A (en) 1930-12-13 1930-12-13 Improvements in and relating to incandescent electric lamps

Country Status (1)

Country Link
GB (1) GB367493A (en)

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