BE333005A - - Google Patents
Info
- Publication number
- BE333005A BE333005A BE333005DA BE333005A BE 333005 A BE333005 A BE 333005A BE 333005D A BE333005D A BE 333005DA BE 333005 A BE333005 A BE 333005A
- 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
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR622030T | 1926-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE333005A true BE333005A (en:Method) |
Family
ID=8985543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE333005D BE333005A (en:Method) | 1926-01-27 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE333005A (en:Method) |
| FR (1) | FR622030A (en:Method) |
-
0
- BE BE333005D patent/BE333005A/xx unknown
-
1926
- 1926-01-27 FR FR622030D patent/FR622030A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR622030A (fr) | 1927-05-21 |