3644827

Information

• Patent Grant
• 3644827

• References
• Source

• Patent Number

  3,644,827

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • H03B21/04 - using several similar stages

• US Classifications

  • 324 - Electricity: measuring and testing
  • 331 - Oscillators