Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
  • H01J25/76—Dynamic electron-multiplier tubes, e.g. Farnsworth multiplier tube, multipactor
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
  • A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
  • H01J19/28—Non-electron-emitting electrodes; Screens
  • H01J19/32—Anodes
  • H01J19/36—Cooling of anodes
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J2893/00—Discharge tubes and lamps
  • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
  • H01J2893/0012—Constructional arrangements
  • H01J2893/0027—Mitigation of temperature effects

Applications Claiming Priority (1)

Publications (1)

Family

ID=21955254

Family Applications (2)

Family Applications After (1)

Country Status (6)

• 0
  • NL NL80934D patent/NL80934B/xx unknown
  • NL NL49955D patent/NL49955C/xx active
  • BE BE419664D patent/BE419664A/xx unknown
• 1936
  • 1936-11-18 GB GB31646/36A patent/GB485620A/en not_active Expired
• 1937
  • 1937-01-21 SE SE236239A patent/SE104482C1/xx unknown
  • 1937-01-22 DE DEF82357D patent/DE681990C/de not_active Expired
  • 1937-01-27 FR FR816943D patent/FR816943A/fr not_active Expired

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