Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J17/00—Gas-filled discharge tubes with solid cathode
  • H01J17/38—Cold-cathode tubes
  • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
  • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J2893/00—Discharge tubes and lamps
  • H01J2893/0069—Tubes for displaying characters

Applications Claiming Priority (1)

Publications (1)

Family

ID=19802495

Family Applications (1)

Country Status (8)

Families Citing this family (1)

Family Cites Families (2)

• 1968
  • 1968-01-12 NL NL6800473A patent/NL6800473A/xx unknown
  • 1968-12-20 DE DE19681816021 patent/DE1816021A1/de active Pending
  • 1968-12-24 FR FR1599425D patent/FR1599425A/fr not_active Expired
• 1969
  • 1969-01-08 US US789773A patent/US3581138A/en not_active Expired - Lifetime
  • 1969-01-09 GB GB0305/69A patent/GB1179544A/en not_active Expired
  • 1969-01-09 AT AT17469A patent/AT284975B/de active
  • 1969-01-09 CH CH22169A patent/CH489113A/de not_active IP Right Cessation
  • 1969-01-10 BE BE726770D patent/BE726770A/xx unknown

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