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3821554
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Information
Patent Grant
3821554
References
Source
Patent Number
3,821,554
Date Filed
Not available
Date Issued
Friday, June 28, 1974
50 years ago
CPC
H01J37/09 - Diaphragms Shields associated with electron or ion-optical arrangements Compensation of disturbing fields
H01F6/00 - Superconducting magnets Superconducting coils
H01J37/1416 - with supra-conducting coils
US Classifications
250 - Radiant energy
313 - Electric lamp and discharge devices
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