BE473869A - - Google Patents
Info
- Publication number
- BE473869A BE473869A BE473869DA BE473869A BE 473869 A BE473869 A BE 473869A BE 473869D A BE473869D A BE 473869DA BE 473869 A BE473869 A BE 473869A
- 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
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2468245A GB600495A (en) | 1945-09-24 | Improvements in and relating to high pressure metal vapour electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473869A true BE473869A (fi) |
Family
ID=10215613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473869D BE473869A (fi) | 1945-09-24 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE473869A (fi) |
| FR (1) | FR947714A (fi) |
-
0
- BE BE473869D patent/BE473869A/xx unknown
-
1947
- 1947-06-07 FR FR947714D patent/FR947714A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR947714A (fr) | 1949-07-11 |