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FR668235A - Incandescent lamp with several filaments - Google Patents

Incandescent lamp with several filaments

Info

Publication number
FR668235A
FR668235A FR668235DA FR668235A FR 668235 A FR668235 A FR 668235A FR 668235D A FR668235D A FR 668235DA FR 668235 A FR668235 A FR 668235A
Authority
FR
France
Prior art keywords
incandescent lamp
several filaments
filaments
several
incandescent
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
Wilhelm Kranz
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 FR668235A publication Critical patent/FR668235A/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
    • H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
FR668235D 1929-01-08 1929-01-08 Incandescent lamp with several filaments Expired FR668235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668235T 1929-01-08

Publications (1)

Publication Number Publication Date
FR668235A true FR668235A (en) 1929-10-29

Family

ID=9014882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668235D Expired FR668235A (en) 1929-01-08 1929-01-08 Incandescent lamp with several filaments

Country Status (1)

Country Link
FR (1) FR668235A (en)

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