GB739337A - Improvements in or relating to electric incandescent lamps of the kind comprising atleast one main filament and one screened dimming filament - Google Patents
Improvements in or relating to electric incandescent lamps of the kind comprising atleast one main filament and one screened dimming filamentInfo
- Publication number
- GB739337A GB739337A GB747/54A GB74754A GB739337A GB 739337 A GB739337 A GB 739337A GB 747/54 A GB747/54 A GB 747/54A GB 74754 A GB74754 A GB 74754A GB 739337 A GB739337 A GB 739337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- dimming
- electric incandescent
- incandescent lamps
- main
- 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
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL318066X | 1953-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB739337A true GB739337A (en) | 1955-10-26 |
Family
ID=19783874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB747/54A Expired GB739337A (en) | 1953-01-14 | 1954-01-11 | Improvements in or relating to electric incandescent lamps of the kind comprising atleast one main filament and one screened dimming filament |
Country Status (6)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3025424A (en) * | 1958-06-16 | 1962-03-13 | Gen Electric | Electric lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU108744A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1932-03-09 | |||
| DE713398C (de) * | 1932-10-01 | 1941-11-06 | Bosch Gmbh Robert | Entsprechend der Wagenbelastung vom Fuehrersitz aus einstellbare Scheinwerferbeleuchtung mit einer Zweifadenlampe fuer Fahrzeuge |
| DE666004C (de) * | 1936-07-19 | 1938-10-08 | Patra Patent Treuhand | Elektrische Scheinwerfergluehlampe |
| DE1605133U (de) * | 1949-03-24 | 1950-04-20 | Wilhelm Dipl Ing Roever | Einrichtung an abblendkappen elektrischer scheinwerfer. |
| NL95351C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1952-12-29 |
-
0
- BE BE525697D patent/BE525697A/xx unknown
- NL NLAANVRAGE7108527,A patent/NL175286B/xx unknown
- NL NL81062D patent/NL81062C/xx active
-
1954
- 1954-01-09 DE DEN8286A patent/DE1142960B/de active Pending
- 1954-01-11 GB GB747/54A patent/GB739337A/en not_active Expired
- 1954-01-12 FR FR1091341D patent/FR1091341A/fr not_active Expired
- 1954-01-12 CH CH318066D patent/CH318066A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL175286B (nl) | |
| CH318066A (de) | 1956-12-15 |
| NL81062C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| BE525697A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| DE1142960B (de) | 1963-01-31 |
| FR1091341A (fr) | 1955-04-12 |
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