2480978

Information

• Patent Grant
• 2480978

• References
• Source

• Patent Number

  2,480,978

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1949
  75 years ago

• CPC

  • H01J29/78 - along a circle, spiral or rotating radial line

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 342 - Communications: directive radio wave systems and devices