FR668563A - Improvements to incandescent lighting lamps - Google Patents

Improvements to incandescent lighting lamps

Info

Publication number
FR668563A
FR668563A FR668563DA FR668563A FR 668563 A FR668563 A FR 668563A FR 668563D A FR668563D A FR 668563DA FR 668563 A FR668563 A FR 668563A
Authority
FR
France
Prior art keywords
lighting lamps
incandescent lighting
incandescent
lamps
lighting
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
Eugene-Alexandre Huguenard
Andre-Victor Sejourne
Jean Eppler
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 FR668563A publication Critical patent/FR668563A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K11/00Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge
FR668563D 1928-05-10 1928-05-10 Improvements to incandescent lighting lamps Expired FR668563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668563T 1928-05-10

Publications (1)

Publication Number Publication Date
FR668563A true FR668563A (en) 1929-11-04

Family

ID=9015139

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668563D Expired FR668563A (en) 1928-05-10 1928-05-10 Improvements to incandescent lighting lamps

Country Status (1)

Country Link
FR (1) FR668563A (en)

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