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3721930
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Information
Patent Grant
3721930
References
Source
Patent Number
3,721,930
Date Filed
Not available
Date Issued
Tuesday, March 20, 1973
51 years ago
CPC
H04N9/285 - using quadrupole lenses
H01J29/76 - Deflecting by magnetic fields only
US Classifications
335 - Electricity: magnetically operated switches, magnets, and electromagnets
348 - Television
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