FR779269A - Further development in incandescent electric lamps - Google Patents

Further development in incandescent electric lamps

Info

Publication number
FR779269A
FR779269A FR779269DA FR779269A FR 779269 A FR779269 A FR 779269A FR 779269D A FR779269D A FR 779269DA FR 779269 A FR779269 A FR 779269A
Authority
FR
France
Prior art keywords
further development
electric lamps
incandescent electric
incandescent
lamps
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
Manuel Pi De Pablo
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 FR779269A publication Critical patent/FR779269A/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
FR779269D 1934-10-06 1934-10-06 Further development in incandescent electric lamps Expired FR779269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR779269T 1934-10-06

Publications (1)

Publication Number Publication Date
FR779269A true FR779269A (en) 1935-04-02

Family

ID=9202646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR779269D Expired FR779269A (en) 1934-10-06 1934-10-06 Further development in incandescent electric lamps

Country Status (2)

Country Link
BE (1) BE405592A (en)
FR (1) FR779269A (en)

Also Published As

Publication number Publication date
BE405592A (en)

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