GB634761A - Electric lamp - Google Patents

Electric lamp

Info

Publication number
GB634761A
GB634761A GB35078/47A GB3507847A GB634761A GB 634761 A GB634761 A GB 634761A GB 35078/47 A GB35078/47 A GB 35078/47A GB 3507847 A GB3507847 A GB 3507847A GB 634761 A GB634761 A GB 634761A
Authority
GB
United Kingdom
Prior art keywords
bulb
curve
electric incandescent
electric lamp
spherical
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
GB35078/47A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENRI GASTON GEORGES DESMAREST
Original Assignee
HENRI GASTON GEORGES DESMAREST
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 HENRI GASTON GEORGES DESMAREST filed Critical HENRI GASTON GEORGES DESMAREST
Publication of GB634761A publication Critical patent/GB634761A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB35078/47A 1946-03-21 1947-12-31 Electric lamp Expired GB634761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR925098T 1946-03-21

Publications (1)

Publication Number Publication Date
GB634761A true GB634761A (en) 1950-03-29

Family

ID=9439844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35078/47A Expired GB634761A (en) 1946-03-21 1947-12-31 Electric lamp

Country Status (5)

Country Link
BE (1) BE478497A (enrdf_load_stackoverflow)
CH (1) CH267217A (enrdf_load_stackoverflow)
FR (1) FR925098A (enrdf_load_stackoverflow)
GB (1) GB634761A (enrdf_load_stackoverflow)
NL (1) NL138036C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL138036C (enrdf_load_stackoverflow)
FR925098A (fr) 1947-08-25
BE478497A (enrdf_load_stackoverflow)
CH267217A (fr) 1950-03-15

Similar Documents

Publication Publication Date Title
US1935729A (en) Beacon or searchlight
ES357562A1 (es) Faro para vehiculos automoviles.
GB657243A (en) Improvements in and relating to electric incandescent lamps
GB397719A (en) Improvements in electric lamps
GB634761A (en) Electric lamp
GB646716A (en) Improvements in tubular electric discharge lamps
GB287088A (en) Improvements in or relating to vehicle lamps
US2123942A (en) Ring-shaped element of prismatic section for improving the luminosity of electric lamps
GB532914A (en) Improvements in and relating to electric therapeutic lamps
US2045512A (en) Electric incandescent lamp
GB477758A (en) Improvements in and relating to electric incandescent lamps
ES374169A1 (es) Perfeccionamientos en la construccion de lamparas electri- cas incandescencias.
GB532090A (en) Improvements in or relating to the head lamps of motor vehicles
GB513249A (en) Improvements in electric incandescent lamps
GB423049A (en) Improvements in or relating to electric incandescent lamps with internal reflectors
ES14950U (es) Lámpara de incandescencia provista de lente condensador
GB186984A (en) Improvements in and relating to lighting fixtures
FR2256531A1 (en) Electric bulb with silvered cap - light is doubly reflected before hitting socket
USRE15455E (en) Gttstavb e
GB554755A (en) Improvements in electric cycle lamps, hand lamps, torches and the like
GB302917A (en) Improvements in incandescent electric lamps
GB305227A (en) Improvements in or relating to incandescent electric lamps
GB453983A (en) Improvements in or relating to electric incandescent lamps
GB607181A (en) Electric lamps
ES22023U (es) Lámpara eléctrica.