BE457760A - - Google Patents
Info
- Publication number
- BE457760A BE457760A BE457760DA BE457760A BE 457760 A BE457760 A BE 457760A BE 457760D A BE457760D A BE 457760DA BE 457760 A BE457760 A BE 457760A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physical Vapour Deposition (AREA)
- Gas-Filled Discharge Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE258433X | 1944-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE457760A true BE457760A (de) |
Family
ID=3866700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE457760D BE457760A (de) | 1944-11-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2453753A (de) |
| BE (1) | BE457760A (de) |
| CH (1) | CH258433A (de) |
| DE (1) | DE803919C (de) |
| FR (1) | FR936339A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL203172A (de) * | 1954-12-31 | |||
| NL101810C (de) * | 1955-02-12 | |||
| US2750528A (en) * | 1955-02-17 | 1956-06-12 | Sylvania Electric Prod | Electronic tube element protective coating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB255090A (en) * | 1925-07-13 | 1927-06-09 | Gen Electric | Improvements in or relating to methods of manufacturing electrodes for electron discharge devices |
| US1936334A (en) * | 1929-01-31 | 1933-11-21 | Gen Scientific Corp | Electrode |
| US1936419A (en) * | 1930-06-03 | 1933-11-21 | Gen Electric | Photo-electric tube |
-
0
- BE BE457760D patent/BE457760A/xx unknown
-
1946
- 1946-09-07 CH CH258433D patent/CH258433A/fr unknown
- 1946-11-27 FR FR936339D patent/FR936339A/fr not_active Expired
-
1947
- 1947-02-08 US US727303A patent/US2453753A/en not_active Expired - Lifetime
-
1948
- 1948-10-26 DE DEP19567A patent/DE803919C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE803919C (de) | 1951-04-12 |
| US2453753A (en) | 1948-11-16 |
| FR936339A (fr) | 1948-07-16 |
| CH258433A (fr) | 1948-11-30 |