GB525419A - Improvements in or relating to tubular electric incandescent lamps or discharge tubes - Google Patents

Improvements in or relating to tubular electric incandescent lamps or discharge tubes

Info

Publication number
GB525419A
GB525419A GB5639/39A GB563939A GB525419A GB 525419 A GB525419 A GB 525419A GB 5639/39 A GB5639/39 A GB 5639/39A GB 563939 A GB563939 A GB 563939A GB 525419 A GB525419 A GB 525419A
Authority
GB
United Kingdom
Prior art keywords
lamp
relating
tube
incandescent lamps
discharge tubes
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
GB5639/39A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB525419A publication Critical patent/GB525419A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
GB5639/39A 1938-02-23 1939-02-20 Improvements in or relating to tubular electric incandescent lamps or discharge tubes Expired GB525419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL208845X 1938-02-23

Publications (1)

Publication Number Publication Date
GB525419A true GB525419A (en) 1940-08-28

Family

ID=19778706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5639/39A Expired GB525419A (en) 1938-02-23 1939-02-20 Improvements in or relating to tubular electric incandescent lamps or discharge tubes

Country Status (5)

Country Link
US (1) US2216223A (de)
CH (1) CH208845A (de)
DE (1) DE713538C (de)
FR (1) FR850714A (de)
GB (1) GB525419A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177741B (de) * 1953-09-15 1964-09-10 Gen Electric Mit versenkten Kontakten versehener Sockel fuer zweiendige elektrische Entladungslampen, insbesondere Leuchtstofflampen, und zugehoerige Lampenhalter
US2922137A (en) * 1957-03-01 1960-01-19 Gen Electric Recessed double contact strip base
JPS63186046U (de) * 1987-05-25 1988-11-29

Also Published As

Publication number Publication date
FR850714A (fr) 1939-12-23
DE713538C (de) 1941-11-10
CH208845A (de) 1940-02-29
US2216223A (en) 1940-10-01

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