NL225220A - - Google Patents
Info
- Publication number
- NL225220A NL225220A NL225220DA NL225220A NL 225220 A NL225220 A NL 225220A NL 225220D A NL225220D A NL 225220DA NL 225220 A NL225220 A NL 225220A
- Authority
- NL
- Netherlands
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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US642073A US2908838A (en) | 1957-02-25 | 1957-02-25 | Aperture mask treatment to prevent cathode poisoning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL225220A true NL225220A (en:Method) |
Family
ID=24575074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL225220D NL225220A (en:Method) | 1957-02-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2908838A (en:Method) |
| BE (1) | BE565080A (en:Method) |
| CH (1) | CH347225A (en:Method) |
| DE (1) | DE1091674B (en:Method) |
| FR (1) | FR1200214A (en:Method) |
| GB (1) | GB841405A (en:Method) |
| NL (1) | NL225220A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323620A (en) * | 1971-12-30 | 1973-07-18 | Hitachi Ltd | Shadow masks for use in colour picture tubes |
| US4621214A (en) * | 1984-04-19 | 1986-11-04 | Rca Corporation | Color selection means having a charged insulator portion for a cathode-ray tube |
| US4622084A (en) * | 1985-01-29 | 1986-11-11 | Chang Kern K N | Method of sealing a mount in a cathode-ray tube |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2279168A (en) * | 1940-02-29 | 1942-04-07 | Westinghouse Electric & Mfg Co | Process for kovar-glass seals |
| BE479146A (en:Method) * | 1941-12-31 | |||
| US2392099A (en) * | 1943-07-29 | 1946-01-01 | Bell Telephone Labor Inc | Manufacture of glass sealed contact units |
| US2777084A (en) * | 1952-04-12 | 1957-01-08 | Gen Electric | Plastic electrode structure for electron tubes |
| US2805360A (en) * | 1954-10-08 | 1957-09-03 | Gen Dynamics Corp | Image storage apparatus |
-
0
- NL NL225220D patent/NL225220A/xx unknown
- BE BE565080D patent/BE565080A/xx unknown
-
1957
- 1957-02-25 US US642073A patent/US2908838A/en not_active Expired - Lifetime
-
1958
- 1958-02-20 GB GB5567/58A patent/GB841405A/en not_active Expired
- 1958-02-21 FR FR1200214D patent/FR1200214A/fr not_active Expired
- 1958-02-22 DE DEC16351A patent/DE1091674B/de active Pending
- 1958-02-24 CH CH347225D patent/CH347225A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2908838A (en) | 1959-10-13 |
| FR1200214A (fr) | 1959-12-18 |
| DE1091674B (de) | 1960-10-27 |
| BE565080A (en:Method) | |
| GB841405A (en) | 1960-07-13 |
| CH347225A (fr) | 1960-06-30 |