GB1348949A - Electric filament lamp - Google Patents

Electric filament lamp

Info

Publication number
GB1348949A
GB1348949A GB4136772A GB4136772A GB1348949A GB 1348949 A GB1348949 A GB 1348949A GB 4136772 A GB4136772 A GB 4136772A GB 4136772 A GB4136772 A GB 4136772A GB 1348949 A GB1348949 A GB 1348949A
Authority
GB
United Kingdom
Prior art keywords
filament lamp
electric filament
electric
lamp
filament
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
GB4136772A
Other languages
English (en)
Inventor
L Schuringa
H Roefs
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1348949A publication Critical patent/GB1348949A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
GB4136772A 1971-09-09 1972-09-06 Electric filament lamp Expired GB1348949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7112394A NL7112394A (de) 1971-09-09 1971-09-09

Publications (1)

Publication Number Publication Date
GB1348949A true GB1348949A (en) 1974-03-27

Family

ID=19813986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4136772A Expired GB1348949A (en) 1971-09-09 1972-09-06 Electric filament lamp

Country Status (9)

Country Link
US (1) US3824421A (de)
JP (1) JPS4836985A (de)
BE (1) BE788518A (de)
CA (1) CA946456A (de)
DE (1) DE2243717C3 (de)
FR (1) FR2152218A1 (de)
GB (1) GB1348949A (de)
IT (1) IT967198B (de)
NL (1) NL7112394A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058749A (en) * 1976-04-05 1977-11-15 Wagner Electric Corporation Filament shield for sealed headlamp and mounting method therefor
JPH0680655B2 (ja) * 1987-03-16 1994-10-12 沖電気工業株式会社 絶縁膜形成方法
JPH088265B2 (ja) * 1988-09-13 1996-01-29 株式会社東芝 化合物半導体装置とその製造方法
DE19544012A1 (de) 1995-11-27 1997-05-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit Abblendkappe und Verfahren zur Herstellung einer derartigen Lampe sowie Abblendkappe für eine elektrische Glühlampe
DE69723365T2 (de) * 1996-06-04 2004-02-12 Honda Giken Kogyo K.K. Lampenbirne für Fahrzeuge
DE19707245A1 (de) * 1997-02-25 1998-08-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung einer elektrischen Glühlampe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974891A (en) * 1909-03-11 1910-11-08 Universal Electric Welding Co Method of making metallic fabric.
US2745045A (en) * 1952-07-19 1956-05-08 Sylvania Electric Prod Semiconductor devices and methods of fabrication
NL86347C (de) * 1954-03-02
US2795722A (en) * 1954-12-29 1957-06-11 Gen Electric Electric incandescent lamp
DE1248799B (de) * 1961-12-13

Also Published As

Publication number Publication date
DE2243717A1 (de) 1973-03-15
CA946456A (en) 1974-04-30
JPS4836985A (de) 1973-05-31
IT967198B (it) 1974-02-28
DE2243717C3 (de) 1978-05-18
BE788518A (fr) 1973-03-07
US3824421A (en) 1974-07-16
FR2152218A1 (de) 1973-04-20
NL7112394A (de) 1973-03-13
DE2243717B2 (de) 1977-09-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years