CH537642A - Incandescent electric lamp - Google Patents

Incandescent electric lamp

Info

Publication number
CH537642A
CH537642A CH1516771A CH1516771A CH537642A CH 537642 A CH537642 A CH 537642A CH 1516771 A CH1516771 A CH 1516771A CH 1516771 A CH1516771 A CH 1516771A CH 537642 A CH537642 A CH 537642A
Authority
CH
Switzerland
Prior art keywords
electric lamp
incandescent electric
incandescent
lamp
electric
Prior art date
Application number
CH1516771A
Other languages
French (fr)
Inventor
Bernard Johnston Robert
Michael Rees John
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 CH537642A publication Critical patent/CH537642A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
CH1516771A 1969-01-21 1969-12-18 Incandescent electric lamp CH537642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB338469A GB1236174A (en) 1969-01-21 1969-01-21 Improvements in electric incandescent lamps

Publications (1)

Publication Number Publication Date
CH537642A true CH537642A (en) 1973-07-13

Family

ID=9757318

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1516771A CH537642A (en) 1969-01-21 1969-12-18 Incandescent electric lamp
CH1887669A CH515610A (en) 1969-01-21 1969-12-18 Incandescent electric lamp and process for its manufacture

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1887669A CH515610A (en) 1969-01-21 1969-12-18 Incandescent electric lamp and process for its manufacture

Country Status (8)

Country Link
AT (1) AT296425B (en)
BE (1) BE742908A (en)
CH (2) CH537642A (en)
DE (1) DE2001978C3 (en)
FR (1) FR2028773A1 (en)
GB (1) GB1236174A (en)
NL (1) NL159812B (en)
SE (1) SE368113B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8302494D0 (en) * 1983-01-29 1983-03-02 Emi Plc Thorn Tungsten halogen incandescent lamps

Also Published As

Publication number Publication date
FR2028773A1 (en) 1970-10-16
DE2001978B2 (en) 1973-10-25
CH515610A (en) 1971-11-15
DE2001978A1 (en) 1970-09-10
AT296425B (en) 1972-02-10
DE2001978C3 (en) 1974-05-16
SE368113B (en) 1974-06-17
NL6917901A (en) 1970-07-23
GB1236174A (en) 1971-06-23
BE742908A (en) 1970-05-14
NL159812B (en) 1979-03-15

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Legal Events

Date Code Title Description
PL Patent ceased