FR739278A - Improvements to cathode ray tubes - Google Patents
Improvements to cathode ray tubesInfo
- Publication number
- FR739278A FR739278A FR739278DA FR739278A FR 739278 A FR739278 A FR 739278A FR 739278D A FR739278D A FR 739278DA FR 739278 A FR739278 A FR 739278A
- Authority
- FR
- France
- Prior art keywords
- cathode ray
- ray tubes
- tubes
- cathode
- 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US547904A US1988469A (en) | 1931-06-30 | 1931-06-30 | Cathode ray apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
FR739278A true FR739278A (en) | 1933-01-09 |
Family
ID=24186624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR739278D Expired FR739278A (en) | 1931-06-30 | 1932-06-30 | Improvements to cathode ray tubes |
Country Status (4)
Country | Link |
---|---|
US (1) | US1988469A (en) |
DE (1) | DE673467C (en) |
FR (1) | FR739278A (en) |
GB (1) | GB383889A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748013C (en) * | 1939-11-08 | 1944-10-23 | Piston for a Branun tube for receiving or sending images | |
NL164276B (en) * | 1951-09-27 | Sandoz Ag | PROCESS OF PREPARING A 1,3-DIPHENYL PYRAZOLINE, OF A PREPARATION FOR OPTICAL BLEACHING OF FIBER MATERIALS BY DISSOLVING ONE OR SOME OF THESE PYRAZOLINS IN WATER AND PROCESS FOR OPTICAL BLEACHING OF FIBER MATERIALS 1,3 -DIPHENYLPYRAZOLINS AND OPTICALLY BLEACHED FIBER MATERIALS OBTAINED BY APPLICATION OF LATEST METHOD. | |
NL7510274A (en) * | 1975-09-01 | 1977-03-03 | Philips Nv | PROCEDURE FOR MANUFACTURE OF A CATHODE NOZZLE TUBE WITH AN INTERNAL CONDUCTIVE COVER, DEVICE FOR PERFORMING THE METHOD AND TUBE OBTAINED ACCORDING TO THIS PROCESS. |
-
1931
- 1931-06-30 US US547904A patent/US1988469A/en not_active Expired - Lifetime
-
1932
- 1932-05-11 GB GB13623/32A patent/GB383889A/en not_active Expired
- 1932-06-28 DE DER85259D patent/DE673467C/en not_active Expired
- 1932-06-30 FR FR739278D patent/FR739278A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB383889A (en) | 1932-11-24 |
US1988469A (en) | 1935-01-22 |
DE673467C (en) | 1939-03-25 |
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