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
  • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
  • H01J29/58—Arrangements for focusing or reflecting ray or beam
  • H01J29/62—Electrostatic lenses

Applications Claiming Priority (1)

Publications (1)

Family

ID=19782567

Family Applications (1)

Country Status (6)

• 0
  • BE BE495703D patent/BE495703A/xx unknown
  • NL NL707016452A patent/NL146459B/xx unknown
  • NL NL73499D patent/NL73499C/xx active
• 1950
  • 1950-05-11 GB GB11772/50A patent/GB683491A/en not_active Expired
  • 1950-05-11 DE DEN863A patent/DE820322C/de not_active Expired
  • 1950-05-12 CH CH287008D patent/CH287008A/de unknown
  • 1950-05-12 FR FR1017656D patent/FR1017656A/fr not_active Expired

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