2803777

Information

• Patent Grant
• 2803777

• References
• Source

• Patent Number

  2,803,777

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1957
  67 years ago

• CPC

  • H01J23/065 - producing a solid cylindrical beam
  • H01J23/083 - Electrostatic focusing arrangements
  • H01J23/087 - Magnetic focusing arrangements
  • H01J23/0876 - with arrangements improving the linearity and homogeniety of the axial field
  • H01J23/26 - Helical slow-wave structures Adjustment therefor
  • H01J23/30 - Damping arrangements associated with slow-wave structures
  • H01J23/42 - the interaction circuit being a helix or a helix-derived slow-wave structure
  • H01J23/50 - the interaction circuit being a helix or derived from a helix
  • H01J25/38 - the forward travelling wave being utilised
  • H01P5/08 - for linking dissimilar lines or devices
  • H01Q11/08 - Helical aerials
  • H03C3/30 - by means of transit-time tube
  • H03H2/006 - Transmitter or amplifier output circuits
  • H04M5/04 - Arrangements for indicating calls or supervising connections for calling or clearing
  • H04M19/02 - providing ringing current or supervisory tones
  • H04Q3/00 - Selecting arrangements

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks