3609591

Information

• Patent Grant
• 3609591

• References
• Source

• Patent Number

  3,609,591

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1971
  53 years ago

• CPC

  • H04M19/02 - providing ringing current or supervisory tones
  • G03H1/08 - Synthesising holograms
  • H03B11/10 - interrupter being semiconductor device
  • Y10T152/10054 - Enclosed cushion

• US Classifications

  • 331 - Oscillators
  • 152 - Resilient tires and wheels