BE429242A - - Google Patents
Info
- Publication number
- BE429242A BE429242A BE429242DA BE429242A BE 429242 A BE429242 A BE 429242A BE 429242D A BE429242D A BE 429242DA BE 429242 A BE429242 A BE 429242A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE205008X | 1937-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE429242A true BE429242A (en:Method) |
Family
ID=5784890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE429242D BE429242A (en:Method) | 1937-07-20 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE429242A (en:Method) |
| CH (1) | CH205008A (en:Method) |
| FR (1) | FR840825A (en:Method) |
| GB (1) | GB494832A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU191673B (en) * | 1984-06-12 | 1987-03-30 | Tungsram Reszvenytarsasag | High-pressure sodium lamp with improved colour response |
-
0
- BE BE429242D patent/BE429242A/xx unknown
-
1938
- 1938-07-18 GB GB21309/38A patent/GB494832A/en not_active Expired
- 1938-07-19 FR FR840825D patent/FR840825A/fr not_active Expired
- 1938-07-19 CH CH205008D patent/CH205008A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH205008A (de) | 1939-05-31 |
| FR840825A (fr) | 1939-05-04 |
| GB494832A (en) | 1938-11-01 |