BE428703A - - Google Patents
Info
- Publication number
- BE428703A BE428703A BE428703DA BE428703A BE 428703 A BE428703 A BE 428703A BE 428703D A BE428703D A BE 428703DA BE 428703 A BE428703 A BE 428703A
- 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
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE206375X | 1937-06-21 | ||
| CH182526T | 1938-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428703A true BE428703A (en:Method) |
Family
ID=25720737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428703D BE428703A (en:Method) | 1937-06-21 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE428703A (en:Method) |
| CH (1) | CH206375A (en:Method) |
| GB (1) | GB512180A (en:Method) |
-
0
- BE BE428703D patent/BE428703A/xx unknown
-
1938
- 1938-06-18 GB GB18177/38A patent/GB512180A/en not_active Expired
- 1938-06-20 CH CH206375D patent/CH206375A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB512180A (en) | 1939-08-30 |
| CH206375A (de) | 1939-07-31 |