IT1003464B - Lampadina elettrica ad incandescen za - Google Patents

Lampadina elettrica ad incandescen za

Info

Publication number
IT1003464B
IT1003464B IT19617/74A IT1961774A IT1003464B IT 1003464 B IT1003464 B IT 1003464B IT 19617/74 A IT19617/74 A IT 19617/74A IT 1961774 A IT1961774 A IT 1961774A IT 1003464 B IT1003464 B IT 1003464B
Authority
IT
Italy
Prior art keywords
incandescen
electric bulb
bulb
electric
Prior art date
Application number
IT19617/74A
Other languages
English (en)
Original Assignee
Thorn Lighting Ltd
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 Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Application granted granted Critical
Publication of IT1003464B publication Critical patent/IT1003464B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paper (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)
IT19617/74A 1973-01-19 1974-01-21 Lampadina elettrica ad incandescen za IT1003464B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB295273A GB1456242A (en) 1973-01-19 1973-01-19 Incandescent lamp

Publications (1)

Publication Number Publication Date
IT1003464B true IT1003464B (it) 1976-06-10

Family

ID=9749149

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19617/74A IT1003464B (it) 1973-01-19 1974-01-21 Lampadina elettrica ad incandescen za

Country Status (14)

Country Link
US (1) US3902091A (it)
JP (1) JPS5818744B2 (it)
BE (1) BE809912A (it)
CA (1) CA986980A (it)
DE (1) DE2402136C3 (it)
DK (1) DK140963B (it)
FR (1) FR2214969B1 (it)
GB (1) GB1456242A (it)
IE (1) IE38743B1 (it)
IT (1) IT1003464B (it)
LU (1) LU69186A1 (it)
NL (1) NL177538C (it)
SE (1) SE391836B (it)
ZA (1) ZA74275B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982046A (en) * 1973-01-19 1976-09-21 Thorn Lighting Limited Incandescent lamps
US4185922A (en) * 1977-01-17 1980-01-29 Thorn Electrical Industries Limited Method of introducing fluorine into a lamp
US4256988A (en) * 1977-01-17 1981-03-17 Thorn Lighting Limited Incandescent halogen lamp with protective envelope coating
US4288713A (en) * 1979-11-23 1981-09-08 Gte Products Corporation Lamp having opaque coating
US5473226A (en) * 1993-11-16 1995-12-05 Osram Sylvania Inc. Incandescent lamp having hardglass envelope with internal barrier layer
DE4410968A1 (de) * 1994-03-29 1995-10-05 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Quecksilberhochdrucklampe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388716A (en) * 1931-12-18 1933-03-02 British Thomson Houston Co Ltd Improvements in and relating to the manufacture of glass articles
US2393469A (en) * 1942-08-03 1946-01-22 Corning Glass Works Fluorescent glass and lamp made therefrom

Also Published As

Publication number Publication date
DE2402136C3 (de) 1978-12-07
DE2402136A1 (de) 1974-07-25
NL177538C (nl) 1985-10-01
FR2214969B1 (it) 1977-06-10
CA986980A (en) 1976-04-06
GB1456242A (en) 1976-11-24
IE38743B1 (en) 1978-03-29
NL177538B (nl) 1985-05-01
BE809912A (fr) 1974-05-16
AU6468174A (en) 1975-07-24
IE38743L (en) 1974-07-19
US3902091A (en) 1975-08-26
DK140963C (it) 1980-05-27
FR2214969A1 (it) 1974-08-19
NL7400812A (it) 1974-07-23
LU69186A1 (it) 1974-04-08
SE391836B (sv) 1977-02-28
JPS49104482A (it) 1974-10-03
DK140963B (da) 1979-12-10
ZA74275B (en) 1975-05-28
DE2402136B2 (de) 1978-04-13
JPS5818744B2 (ja) 1983-04-14

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