FR765847A - Improvements to light bulbs - Google Patents

Improvements to light bulbs

Info

Publication number
FR765847A
FR765847A FR765847DA FR765847A FR 765847 A FR765847 A FR 765847A FR 765847D A FR765847D A FR 765847DA FR 765847 A FR765847 A FR 765847A
Authority
FR
France
Prior art keywords
light bulbs
bulbs
light
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
Wladimir Capari
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 FR765847A publication Critical patent/FR765847A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/34—Double wall vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
FR765847D 1933-12-20 1933-12-20 Improvements to light bulbs Expired FR765847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR765847T 1933-12-20

Publications (1)

Publication Number Publication Date
FR765847A true FR765847A (en) 1934-06-16

Family

ID=9182969

Family Applications (1)

Application Number Title Priority Date Filing Date
FR765847D Expired FR765847A (en) 1933-12-20 1933-12-20 Improvements to light bulbs

Country Status (1)

Country Link
FR (1) FR765847A (en)

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