FR990586A - Variable Wattage Incandescent Lamp Improvements - Google Patents

Variable Wattage Incandescent Lamp Improvements

Info

Publication number
FR990586A
FR990586A FR990586DA FR990586A FR 990586 A FR990586 A FR 990586A FR 990586D A FR990586D A FR 990586DA FR 990586 A FR990586 A FR 990586A
Authority
FR
France
Prior art keywords
incandescent lamp
variable wattage
wattage incandescent
variable
lamp
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)
Inventor
Frederic Bloch
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 filed Critical
Application granted granted Critical
Publication of FR990586A publication Critical patent/FR990586A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
FR990586D 1949-06-13 1949-06-13 Variable Wattage Incandescent Lamp Improvements Expired FR990586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR990586T 1949-06-13

Publications (1)

Publication Number Publication Date
FR990586A true FR990586A (en) 1951-09-24

Family

ID=9545358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR990586D Expired FR990586A (en) 1949-06-13 1949-06-13 Variable Wattage Incandescent Lamp Improvements

Country Status (1)

Country Link
FR (1) FR990586A (en)

Similar Documents

Publication Publication Date Title
FR982309A (en) Incandescent lamp
FR878382A (en) Improvements to incandescent electric lamps
FR986138A (en) Improvements in the manufacture of incandescent lamps
FR880406A (en) Improvements to incandescent electric lamps
FR990586A (en) Variable Wattage Incandescent Lamp Improvements
FR1016483A (en) Improvements to incandescent lamp frames
FR1047567A (en) Incandescent lamp improvements
FR883598A (en) Incandescent lamp improvements
FR1111389A (en) Incandescent lamp
FR984710A (en) Incandescent electric lamp
FR996477A (en) Incandescent electric lamp
FR985647A (en) Incandescent filament candle
FR927750A (en) Improvements to incandescent electric lamps
FR1014281A (en) Incandescent lamp
FR1041330A (en) Incandescent lamp
FR1031458A (en) Incandescent lamp
CH283232A (en) Luminaire with at least one tubular fluorescent lamp and one incandescent lamp.
FR1105086A (en) Incandescent lamp
DK74851C (en) Electric incandescent lamp with internal shade.
FR1005723A (en) Incandescent electric lamp
FR1063090A (en) Incandescent lamp improvements
FR1020298A (en) Upturned Glowing Sleeve Lantern
FR1008357A (en) Further development of support sockets for incandescent lamps
FR994193A (en) Socket or cover for incandescent electric lamps
FR1037959A (en) Incandescent lamp