FR873959A - Cathode ray tube - Google Patents
Cathode ray tubeInfo
- Publication number
- FR873959A FR873959A FR873959DA FR873959A FR 873959 A FR873959 A FR 873959A FR 873959D A FR873959D A FR 873959DA FR 873959 A FR873959 A FR 873959A
- Authority
- FR
- France
- Prior art keywords
- ray tube
- cathode ray
- cathode
- tube
- ray
- 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
-
- 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
- H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347389A US2295038A (en) | 1940-07-25 | 1940-07-25 | Cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
FR873959A true FR873959A (en) | 1942-07-24 |
Family
ID=23363503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR873959D Expired FR873959A (en) | 1940-07-25 | 1941-07-02 | Cathode ray tube |
Country Status (3)
Country | Link |
---|---|
US (2) | US2295038A (en) |
FR (1) | FR873959A (en) |
GB (1) | GB546846A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2592242A (en) * | 1946-07-02 | 1952-04-08 | Gen Electric | Electron gun and mounting therefor |
US6192106B1 (en) | 1999-02-11 | 2001-02-20 | Picker International, Inc. | Field service flashable getter for x-ray tubes |
-
0
- US US22275D patent/USRE22275E/en not_active Expired
-
1940
- 1940-07-25 US US347389A patent/US2295038A/en not_active Expired - Lifetime
-
1941
- 1941-07-01 GB GB8280/41A patent/GB546846A/en not_active Expired
- 1941-07-02 FR FR873959D patent/FR873959A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
USRE22275E (en) | 1943-02-23 |
GB546846A (en) | 1942-07-31 |
US2295038A (en) | 1942-09-08 |
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