3509500

Information

• Patent Grant
• 3509500

• References
• Source

• Patent Number

  3,509,500

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1970
  54 years ago

• CPC

  • H03H7/01 - Frequency selective two-port networks
  • H03H7/40 - Automatic matching of load impedance to source impedance
  • H03J5/0209 - Discontinuous tuning using an electrical variable impedance element
  • H03J5/246 - using electronic means
  • H03J7/18 - Automatic scanning over a band of frequencies

• US Classifications

  • 334 - Tuners
  • 324 - Electricity: measuring and testing
  • 333 - Wave transmission lines and networks
  • 455 - Telecommunications