FR577428A - Improvements to incandescent electric lamps - Google Patents

Improvements to incandescent electric lamps

Info

Publication number
FR577428A
FR577428A FR577428DA FR577428A FR 577428 A FR577428 A FR 577428A FR 577428D A FR577428D A FR 577428DA FR 577428 A FR577428 A FR 577428A
Authority
FR
France
Prior art keywords
electric lamps
incandescent electric
incandescent
lamps
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
Victor-Marie-Andre Robert
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 FR577428A publication Critical patent/FR577428A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR577428D 1924-02-19 1924-02-19 Improvements to incandescent electric lamps Expired FR577428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577428T 1924-02-19

Publications (1)

Publication Number Publication Date
FR577428A true FR577428A (en) 1924-09-05

Family

ID=8954731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577428D Expired FR577428A (en) 1924-02-19 1924-02-19 Improvements to incandescent electric lamps

Country Status (1)

Country Link
FR (1) FR577428A (en)

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