CH205006A - Electric light bulb. - Google Patents

Electric light bulb.

Info

Publication number
CH205006A
CH205006A CH205006DA CH205006A CH 205006 A CH205006 A CH 205006A CH 205006D A CH205006D A CH 205006DA CH 205006 A CH205006 A CH 205006A
Authority
CH
Switzerland
Prior art keywords
light bulb
electric light
electric
bulb
light
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 by Philips Nv filed Critical Philips Nv
Publication of CH205006A publication Critical patent/CH205006A/en

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
CH205006D 1937-10-04 1938-10-03 Electric light bulb. CH205006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL205006X 1937-10-04

Publications (1)

Publication Number Publication Date
CH205006A true CH205006A (en) 1939-05-31

Family

ID=19778509

Family Applications (1)

Application Number Title Priority Date Filing Date
CH205006D CH205006A (en) 1937-10-04 1938-10-03 Electric light bulb.

Country Status (4)

Country Link
BE (1) BE430474A (en)
CH (1) CH205006A (en)
FR (1) FR844304A (en)
GB (1) GB504893A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598225A (en) * 1983-02-25 1986-07-01 Gte Products Corporation Electric lamp with high outer-envelope to inner-envelope wall-thickness ratio

Also Published As

Publication number Publication date
FR844304A (en) 1939-07-24
BE430474A (en)
GB504893A (en) 1939-05-02

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