FR849625A - Electronic discharge devices - Google Patents
Electronic discharge devicesInfo
- Publication number
- FR849625A FR849625A FR849625DA FR849625A FR 849625 A FR849625 A FR 849625A FR 849625D A FR849625D A FR 849625DA FR 849625 A FR849625 A FR 849625A
- Authority
- FR
- France
- Prior art keywords
- discharge devices
- electronic discharge
- electronic
- devices
- discharge
- Prior art date
- 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
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB764838A GB513640A (en) | 1938-03-11 | 1938-03-11 | Electron discharge devices particularly cathode ray tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR849625A true FR849625A (en) | 1939-11-28 |
Family
ID=9837126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR849625D Expired FR849625A (en) | 1938-03-11 | 1939-01-30 | Electronic discharge devices |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR849625A (en) |
GB (1) | GB513640A (en) |
NL (1) | NL66322C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2717325A (en) * | 1952-04-08 | 1955-09-06 | Int Standard Electric Corp | Indirectly heated cathode, for cathode ray tubes in particular |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2436264A (en) * | 1945-06-14 | 1948-02-17 | Kreisler Mfg Corp Jacques | Electron gun for cathode-ray tubes |
-
0
- NL NL66322D patent/NL66322C/xx active
-
1938
- 1938-03-11 GB GB764838A patent/GB513640A/en not_active Expired
-
1939
- 1939-01-30 FR FR849625D patent/FR849625A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2717325A (en) * | 1952-04-08 | 1955-09-06 | Int Standard Electric Corp | Indirectly heated cathode, for cathode ray tubes in particular |
Also Published As
Publication number | Publication date |
---|---|
GB513640A (en) | 1939-10-18 |
NL66322C (en) |
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