FR649543A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR649543A
FR649543A FR649543DA FR649543A FR 649543 A FR649543 A FR 649543A FR 649543D A FR649543D A FR 649543DA FR 649543 A FR649543 A FR 649543A
Authority
FR
France
Prior art keywords
electric lamps
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
Arsene Tricoche
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 FR649543A publication Critical patent/FR649543A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR649543D 1928-02-22 1928-02-22 Improvements to electric lamps Expired FR649543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR649543T 1928-02-22

Publications (1)

Publication Number Publication Date
FR649543A true FR649543A (en) 1928-12-24

Family

ID=9003365

Family Applications (1)

Application Number Title Priority Date Filing Date
FR649543D Expired FR649543A (en) 1928-02-22 1928-02-22 Improvements to electric lamps

Country Status (1)

Country Link
FR (1) FR649543A (en)

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