FR850714A - Improvements to tubular incandescent electric lamps and electric discharge tubes - Google Patents

Improvements to tubular incandescent electric lamps and electric discharge tubes

Info

Publication number
FR850714A
FR850714A FR850714DA FR850714A FR 850714 A FR850714 A FR 850714A FR 850714D A FR850714D A FR 850714DA FR 850714 A FR850714 A FR 850714A
Authority
FR
France
Prior art keywords
discharge tubes
electric
tubular incandescent
lamps
electric discharge
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR850714A publication Critical patent/FR850714A/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
FR850714D 1938-02-23 1939-02-22 Improvements to tubular incandescent electric lamps and electric discharge tubes Expired FR850714A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR850714A true FR850714A (en) 1939-12-23

Family

ID=19778706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850714D Expired FR850714A (en) 1938-02-23 1939-02-22 Improvements to tubular incandescent electric lamps and electric discharge tubes

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292945A2 (en) * 1987-05-25 1988-11-30 Kabushiki Kaisha Toshiba Low-pressure discharge lamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177741B (en) * 1953-09-15 1964-09-10 Gen Electric Socket with countersunk contacts for double-ended electric discharge lamps, especially fluorescent lamps, and associated lamp holders
US2922137A (en) * 1957-03-01 1960-01-19 Gen Electric Recessed double contact strip base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292945A2 (en) * 1987-05-25 1988-11-30 Kabushiki Kaisha Toshiba Low-pressure discharge lamp
EP0292945A3 (en) * 1987-05-25 1990-12-27 Kabushiki Kaisha Toshiba Low-pressure discharge lamp

Also Published As

Publication number Publication date
CH208845A (en) 1940-02-29
DE713538C (en) 1941-11-10
GB525419A (en) 1940-08-28
US2216223A (en) 1940-10-01

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