BE340880A - - Google Patents
Info
- Publication number
- BE340880A BE340880A BE340880DA BE340880A BE 340880 A BE340880 A BE 340880A BE 340880D A BE340880D A BE 340880DA BE 340880 A BE340880 A BE 340880A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1777253X | 1926-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE340880A true BE340880A (da) |
Family
ID=19873084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE340880D BE340880A (da) | 1926-04-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1777253A (da) |
| BE (1) | BE340880A (da) |
| DE (1) | DE665414C (da) |
| NL (1) | NL19436C (da) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2505909A (en) * | 1948-02-26 | 1950-05-02 | Bishop H Russell | Cathode-ray tube with oxide coated cathode |
| BE488975A (da) * | 1948-05-14 | |||
| US2848635A (en) * | 1954-11-16 | 1958-08-19 | Vacuum Electronic Engineering | Ionization gauges |
| US3312856A (en) * | 1963-03-26 | 1967-04-04 | Gen Electric | Rhenium supported metallic boride cathode emitters |
-
0
- NL NL19436D patent/NL19436C/xx active
- BE BE340880D patent/BE340880A/xx unknown
-
1926
- 1926-10-12 DE DEN26449D patent/DE665414C/de not_active Expired
-
1927
- 1927-02-25 US US171051A patent/US1777253A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1777253A (en) | 1930-09-30 |
| NL19436C (da) | |
| DE665414C (de) | 1938-09-24 |