FR653980A - Double filament electric lamp, more particularly applicable to automobile headlights - Google Patents

Double filament electric lamp, more particularly applicable to automobile headlights

Info

Publication number
FR653980A
FR653980A FR653980DA FR653980A FR 653980 A FR653980 A FR 653980A FR 653980D A FR653980D A FR 653980DA FR 653980 A FR653980 A FR 653980A
Authority
FR
France
Prior art keywords
particularly applicable
electric lamp
automobile headlights
double filament
filament electric
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
Marcel Desmas
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 FR653980A publication Critical patent/FR653980A/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
FR653980D 1928-05-08 1928-05-08 Double filament electric lamp, more particularly applicable to automobile headlights Expired FR653980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR653980T 1928-05-08

Publications (1)

Publication Number Publication Date
FR653980A true FR653980A (en) 1929-03-29

Family

ID=9006191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR653980D Expired FR653980A (en) 1928-05-08 1928-05-08 Double filament electric lamp, more particularly applicable to automobile headlights

Country Status (1)

Country Link
FR (1) FR653980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490539A (en) * 1948-07-17 1949-12-06 Donald F Oberg Vehicle head lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490539A (en) * 1948-07-17 1949-12-06 Donald F Oberg Vehicle head lamp

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