FR2337939B1 - - Google Patents

Info

Publication number
FR2337939B1
FR2337939B1 FR7700792A FR7700792A FR2337939B1 FR 2337939 B1 FR2337939 B1 FR 2337939B1 FR 7700792 A FR7700792 A FR 7700792A FR 7700792 A FR7700792 A FR 7700792A FR 2337939 B1 FR2337939 B1 FR 2337939B1
Authority
FR
France
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
FR7700792A
Other languages
French (fr)
Other versions
FR2337939A1 (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.)
Thorn Lighting Ltd
Original Assignee
Thorn Lighting 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 Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Publication of FR2337939A1 publication Critical patent/FR2337939A1/en
Application granted granted Critical
Publication of FR2337939B1 publication Critical patent/FR2337939B1/fr
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K1/00Details
    • H01K1/28Envelopes; Vessels
    • H01K1/32Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
FR7700792A 1976-01-12 1977-01-12 INCANDESCENT LAMP CONTAINING AN INTERNAL COATING FOR PROTECTION AGAINST HALOGENS, AND METHOD OF MANUFACTURING Granted FR2337939A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB104576A GB1571194A (en) 1976-01-12 1976-01-12 Internal protective coating for incandescent lamps

Publications (2)

Publication Number Publication Date
FR2337939A1 FR2337939A1 (en) 1977-08-05
FR2337939B1 true FR2337939B1 (en) 1980-09-05

Family

ID=9715212

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700792A Granted FR2337939A1 (en) 1976-01-12 1977-01-12 INCANDESCENT LAMP CONTAINING AN INTERNAL COATING FOR PROTECTION AGAINST HALOGENS, AND METHOD OF MANUFACTURING

Country Status (13)

Country Link
JP (1) JPS52101881A (en)
AU (1) AU507484B2 (en)
BE (1) BE850296A (en)
CA (1) CA1097991A (en)
DE (1) DE2701051A1 (en)
DK (1) DK11577A (en)
FR (1) FR2337939A1 (en)
GB (1) GB1571194A (en)
IE (1) IE44478B1 (en)
IT (1) IT1075605B (en)
LU (1) LU76555A1 (en)
NL (1) NL185881C (en)
SE (1) SE437743B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD143980A1 (en) * 1979-07-13 1980-09-17 Hasso Meinert LIGHT BULB WITH A FLUOR CIRCULAR PROCESS
DE3139294A1 (en) * 1981-10-02 1983-04-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München HALOGEN BULB AND METHOD FOR PROTECTING YOUR INTERIOR SURFACE
JPS5958753A (en) * 1982-09-28 1984-04-04 株式会社東芝 Incandescent bulb
GB8428881D0 (en) * 1984-11-15 1984-12-27 Atomic Energy Authority Uk Light scattering coatings
DE102008061776A1 (en) 2008-12-11 2010-06-17 Osram Gesellschaft mit beschränkter Haftung halogen bulb
DE102010042557A1 (en) 2009-10-21 2011-04-28 Osram Gesellschaft mit beschränkter Haftung halogen bulb

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT175628B (en) * 1950-07-12 1953-07-25 Egyesuelt Izzolampa Incandescent lamp and process for making same
FR1139217A (en) * 1954-02-26 1957-06-26 Philips Nv Incandescent lamp
FR1375567A (en) * 1963-11-27 1964-10-16 Philips Nv Gas-filled incandescent lamp
HU162781B (en) * 1971-12-22 1973-04-28

Also Published As

Publication number Publication date
FR2337939A1 (en) 1977-08-05
DE2701051A1 (en) 1977-07-21
DE2701051C2 (en) 1988-08-11
AU507484B2 (en) 1980-02-14
GB1571194A (en) 1980-07-09
NL7700150A (en) 1977-07-14
IE44478B1 (en) 1981-12-16
CA1097991A (en) 1981-03-24
AU2126977A (en) 1978-07-20
NL185881B (en) 1990-03-01
IE44478L (en) 1977-07-12
LU76555A1 (en) 1977-06-17
SE437743B (en) 1985-03-11
NL185881C (en) 1990-08-01
SE7700252L (en) 1977-07-13
BE850296A (en) 1977-07-12
JPS52101881A (en) 1977-08-26
DK11577A (en) 1977-07-13
IT1075605B (en) 1985-04-22

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Legal Events

Date Code Title Description
ST Notification of lapse