GB674970A - Improvements in or relating to electric lamps - Google Patents

Improvements in or relating to electric lamps

Info

Publication number
GB674970A
GB674970A GB17759/49A GB1775949A GB674970A GB 674970 A GB674970 A GB 674970A GB 17759/49 A GB17759/49 A GB 17759/49A GB 1775949 A GB1775949 A GB 1775949A GB 674970 A GB674970 A GB 674970A
Authority
GB
United Kingdom
Prior art keywords
filament
insulating
insulating material
bridge
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
GB17759/49A
Other languages
English (en)
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
Publication of GB674970A publication Critical patent/GB674970A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Tents Or Canopies (AREA)
GB17759/49A 1948-07-06 1949-07-05 Improvements in or relating to electric lamps Expired GB674970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT277140X 1948-07-06
IT40249X 1949-02-04

Publications (1)

Publication Number Publication Date
GB674970A true GB674970A (en) 1952-07-02

Family

ID=26325507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17759/49A Expired GB674970A (en) 1948-07-06 1949-07-05 Improvements in or relating to electric lamps

Country Status (6)

Country Link
US (1) US2592823A (en:Method)
BE (1) BE490002A (en:Method)
CH (1) CH277140A (en:Method)
DE (1) DE817180C (en:Method)
FR (1) FR990100A (en:Method)
GB (1) GB674970A (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519865A (en) * 1967-09-19 1970-07-07 British Lighting Ind Ltd Low pressure alkali metal discharge lamps with protected lead wires

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US773805A (en) * 1902-09-29 1904-11-01 Albert W W Miller Incandescent electric lamp.
US797593A (en) * 1903-09-03 1905-08-22 Albert W W Miller Incandescent electric lamp.
US1022543A (en) * 1907-03-13 1912-04-09 Gen Electric Holder for lamp-filaments.
US2006820A (en) * 1931-07-09 1935-07-02 Adams Maude Illuminating device
US2219510A (en) * 1935-12-28 1940-10-29 Birdseye Electric Corp Reflecting electric lamp
BE441281A (en:Method) * 1940-01-19
US2434478A (en) * 1943-12-22 1948-01-13 Westinghouse Electric Corp Incandescent electric lamp and method
BE476889A (en:Method) * 1944-11-30

Also Published As

Publication number Publication date
DE817180C (de) 1951-10-15
CH277140A (it) 1951-08-15
US2592823A (en) 1952-04-15
BE490002A (en:Method)
FR990100A (fr) 1951-09-17

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