1927393

Information

• Patent Grant
• 1927393

• References
• Source

• Patent Number

  1,927,393

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1933
  91 years ago

• CPC

  • H01J25/72 - in which a standing wave or a considerable part thereof is produced along an electrode
  • H01P5/04 - with variable factor of coupling

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 333 - Wave transmission lines and networks
  • 343 - Communications: radio wave antennas
  • 455 - Telecommunications