FR2255698B1 - - Google Patents
Info
- Publication number
- FR2255698B1 FR2255698B1 FR7346038A FR7346038A FR2255698B1 FR 2255698 B1 FR2255698 B1 FR 2255698B1 FR 7346038 A FR7346038 A FR 7346038A FR 7346038 A FR7346038 A FR 7346038A FR 2255698 B1 FR2255698 B1 FR 2255698B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7346038A FR2255698B1 (en) | 1973-12-21 | 1973-12-21 | |
US533715A US3930179A (en) | 1973-12-21 | 1974-12-17 | Grid-type electronic tube |
GB55027/74A GB1483388A (en) | 1973-12-21 | 1974-12-19 | Grid-type electronic tube |
DE19742460193 DE2460193C3 (en) | 1973-12-21 | 1974-12-19 | Electron tube with cylindrical electrodes |
JP49146661A JPS5856937B2 (en) | 1973-12-21 | 1974-12-20 | Grid type electron tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7346038A FR2255698B1 (en) | 1973-12-21 | 1973-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2255698A1 FR2255698A1 (en) | 1975-07-18 |
FR2255698B1 true FR2255698B1 (en) | 1977-08-19 |
Family
ID=9129620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7346038A Expired FR2255698B1 (en) | 1973-12-21 | 1973-12-21 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3930179A (en) |
JP (1) | JPS5856937B2 (en) |
FR (1) | FR2255698B1 (en) |
GB (1) | GB1483388A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2655790B1 (en) * | 1989-12-08 | 1992-01-24 | Thomson Tubes Electroniques | GRILLE TUBE WITH IMPROVED YIELD. |
FR2728386B1 (en) * | 1994-12-20 | 1997-01-24 | Thomson Tubes Electroniques | ELECTRONIC TUBE WITH IMPROVED PERFORMANCE GRID |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1794242A (en) * | 1927-04-16 | 1931-02-24 | E C & Alexandre Grammont Soc | Vacuum tube with two anodes and two grids |
US1930147A (en) * | 1929-04-16 | 1933-10-10 | Gen Electric | Gaseous electric discharge device |
NL62591C (en) * | 1939-09-30 |
-
1973
- 1973-12-21 FR FR7346038A patent/FR2255698B1/fr not_active Expired
-
1974
- 1974-12-17 US US533715A patent/US3930179A/en not_active Expired - Lifetime
- 1974-12-19 GB GB55027/74A patent/GB1483388A/en not_active Expired
- 1974-12-20 JP JP49146661A patent/JPS5856937B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2460193B2 (en) | 1976-06-16 |
GB1483388A (en) | 1977-08-17 |
FR2255698A1 (en) | 1975-07-18 |
DE2460193A1 (en) | 1975-07-17 |
US3930179A (en) | 1975-12-30 |
JPS5856937B2 (en) | 1983-12-17 |
JPS5096173A (en) | 1975-07-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |