GB1348949A - Electric filament lamp - Google Patents
Electric filament lampInfo
- Publication number
- GB1348949A GB1348949A GB4136772A GB4136772A GB1348949A GB 1348949 A GB1348949 A GB 1348949A GB 4136772 A GB4136772 A GB 4136772A GB 4136772 A GB4136772 A GB 4136772A GB 1348949 A GB1348949 A GB 1348949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament lamp
- electric filament
- electric
- lamp
- filament
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7112394A NL7112394A (en) | 1971-09-09 | 1971-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1348949A true GB1348949A (en) | 1974-03-27 |
Family
ID=19813986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4136772A Expired GB1348949A (en) | 1971-09-09 | 1972-09-06 | Electric filament lamp |
Country Status (9)
Country | Link |
---|---|
US (1) | US3824421A (en) |
JP (1) | JPS4836985A (en) |
BE (1) | BE788518A (en) |
CA (1) | CA946456A (en) |
DE (1) | DE2243717C3 (en) |
FR (1) | FR2152218A1 (en) |
GB (1) | GB1348949A (en) |
IT (1) | IT967198B (en) |
NL (1) | NL7112394A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4058749A (en) * | 1976-04-05 | 1977-11-15 | Wagner Electric Corporation | Filament shield for sealed headlamp and mounting method therefor |
JPH0680655B2 (en) * | 1987-03-16 | 1994-10-12 | 沖電気工業株式会社 | Insulation film formation method |
JPH088265B2 (en) * | 1988-09-13 | 1996-01-29 | 株式会社東芝 | Compound semiconductor device and manufacturing method thereof |
DE19544012A1 (en) | 1995-11-27 | 1997-05-28 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric light bulb with anti-dazzle device and method for producing such a lamp and anti-dazzle device for an electric light bulb |
DE69723365T2 (en) * | 1996-06-04 | 2004-02-12 | Honda Giken Kogyo K.K. | Lamp bulb for vehicles |
DE19707245A1 (en) * | 1997-02-25 | 1998-08-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Method of making an electric light bulb |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US974891A (en) * | 1909-03-11 | 1910-11-08 | Universal Electric Welding Co | Method of making metallic fabric. |
US2745045A (en) * | 1952-07-19 | 1956-05-08 | Sylvania Electric Prod | Semiconductor devices and methods of fabrication |
NL86347C (en) * | 1954-03-02 | |||
US2795722A (en) * | 1954-12-29 | 1957-06-11 | Gen Electric | Electric incandescent lamp |
DE1248799B (en) * | 1961-12-13 |
-
0
- BE BE788518D patent/BE788518A/en not_active IP Right Cessation
-
1971
- 1971-09-09 NL NL7112394A patent/NL7112394A/xx unknown
-
1972
- 1972-09-01 CA CA150,754A patent/CA946456A/en not_active Expired
- 1972-09-06 GB GB4136772A patent/GB1348949A/en not_active Expired
- 1972-09-06 JP JP47089481A patent/JPS4836985A/ja active Pending
- 1972-09-06 IT IT28876/72A patent/IT967198B/en active
- 1972-09-06 DE DE2243717A patent/DE2243717C3/en not_active Expired
- 1972-09-07 US US00286933A patent/US3824421A/en not_active Expired - Lifetime
- 1972-09-08 FR FR7231885A patent/FR2152218A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2243717A1 (en) | 1973-03-15 |
CA946456A (en) | 1974-04-30 |
JPS4836985A (en) | 1973-05-31 |
IT967198B (en) | 1974-02-28 |
DE2243717C3 (en) | 1978-05-18 |
BE788518A (en) | 1973-03-07 |
US3824421A (en) | 1974-07-16 |
FR2152218A1 (en) | 1973-04-20 |
NL7112394A (en) | 1973-03-13 |
DE2243717B2 (en) | 1977-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |