BE408891A - - Google Patents
Info
- Publication number
- BE408891A BE408891A BE408891DA BE408891A BE 408891 A BE408891 A BE 408891A BE 408891D A BE408891D A BE 408891DA BE 408891 A BE408891 A BE 408891A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/183—Composition or manufacture of getters
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1103934A GB436527A (en) | 1934-04-12 | 1934-04-12 | Improvements in or relating to the production of highly electro-positive metals within sealed vessels, such for example as thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE408891A true BE408891A (en:Method) |
Family
ID=9978905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE408891D BE408891A (en:Method) | 1934-04-12 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE408891A (en:Method) |
| FR (1) | FR788050A (en:Method) |
| GB (1) | GB436527A (en:Method) |
-
0
- BE BE408891D patent/BE408891A/xx unknown
-
1934
- 1934-04-12 GB GB1103934A patent/GB436527A/en not_active Expired
-
1935
- 1935-03-29 FR FR788050D patent/FR788050A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB436527A (en) | 1935-10-14 |
| FR788050A (fr) | 1935-10-02 |