Cathode-ray tubes of the focus-mask variety
United States Patent 3005921
US Patent References:
Hydrolysis of steroid ketals
- - 2728782
Electron lens structure for television tubes
- - 2793319
Grid structure for cathode-ray tubes
- - 2824988
Compensation of cathode ray post acceleration field distortion
- - 2914691
Hydrolysis of steroid ketals
- - 2728782
Electron lens structure for television tubes
- - 2793319
Grid structure for cathode-ray tubes
- - 2824988
Compensation of cathode ray post acceleration field distortion
- - 2914691
Inventors:
Godfrey, Richard H.
Publication Date:
10/24/1961
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Assignee:
RCA CORP
Primary Class:
Other Classes:
313/439, 315/376
International Classes:
H01J29/07; H01J29/81; H01J31/20; H01J29/46; H01J31/10