GB287563A - Improvements in or relating to gasfilled electric incandescent lamps - Google Patents

Improvements in or relating to gasfilled electric incandescent lamps

Info

Publication number
GB287563A
GB287563A GB8332/28A GB833228A GB287563A GB 287563 A GB287563 A GB 287563A GB 8332/28 A GB8332/28 A GB 8332/28A GB 833228 A GB833228 A GB 833228A GB 287563 A GB287563 A GB 287563A
Authority
GB
United Kingdom
Prior art keywords
relating
incandescent lamps
electric incandescent
gasfilled
gasfilled 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
GB8332/28A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB287563A publication Critical patent/GB287563A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
GB8332/28A 1927-03-25 1928-03-19 Improvements in or relating to gasfilled electric incandescent lamps Expired GB287563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL287563X 1927-03-25

Publications (1)

Publication Number Publication Date
GB287563A true GB287563A (en) 1928-08-30

Family

ID=19782600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8332/28A Expired GB287563A (en) 1927-03-25 1928-03-19 Improvements in or relating to gasfilled electric incandescent lamps

Country Status (5)

Country Link
BE (1) BE349845A (enrdf_load_stackoverflow)
DE (1) DE494944C (enrdf_load_stackoverflow)
FR (1) FR651059A (enrdf_load_stackoverflow)
GB (1) GB287563A (enrdf_load_stackoverflow)
NL (1) NL22482C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE349845A (enrdf_load_stackoverflow)
FR651059A (fr) 1929-02-14
DE494944C (de) 1930-03-31
NL22482C (enrdf_load_stackoverflow) 1929-03-15

Similar Documents

Publication Publication Date Title
GB468643A (en) Improvements in or relating to extra-high-pressure metal vapour electric discharge devices
GB402747A (en) Improvements in or relating to electric gas and vapor arc discharge lamps
GB287563A (en) Improvements in or relating to gasfilled electric incandescent lamps
GB502078A (en) Improvements in or relating to gasfilled electric incandescent lamps
GB484328A (en) Improvements in combinations of metal vapour electric discharge devices, adapted to emit radiation, and electric incandescent lamps
GB420575A (en) Improvements in electric gasfilled incandescent lamps
GB352352A (enrdf_load_stackoverflow)
GB400756A (en) Improvements in electric lamps
GB365434A (en) Improvements in luminous electric discharge tubes
GB520835A (en) Improvements in gasfilled electric incandescent lamps
GB429886A (en) Improvements in and relating to electric lamps
GB211879A (en) Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith
GB484555A (en) Improvements in methods of introducing electric conductors into hermetically-sealed vitreous vessels
GB504893A (en) Improvements in or relating to electric incandescent lamps
GB486418A (en) Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge path
GB498827A (en) Improvements relating to electric incandescent lamps
GB196905A (en) Improvements in or relating to electric lamps provided with a coiled filament
GB360339A (en) Improvements in or relating to electric lamps
GB359712A (en) Improvements in or relating to electric incandescent lamps
GB196231A (en) Improvements in or relating to hollow bodies in which electric current conductors are hermetically introduced through a glass wall
GB374466A (en) Improvements in or relating to electric glow discharge lamps
GB294242A (en) Improvements in the manufacture of electric incandescent lamps
GB198322A (en) Improvements in or relating to devices for hermetically sealing in glass leading-in wires for heavy electric currents
GB503462A (en) Cap for electric incandescent lamps
GB418867A (en) Improvements in or relating to electron discharge tubes or electric incandescent lamps