3424981

Information

• Patent Grant
• 3424981

• References
• Source

• Patent Number

  3,424,981

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1969
  55 years ago

• CPC

  • G01R19/18 - using conversion of dc into ac
  • H03F3/40 - with tubes only

• US Classifications

  • 324 - Electricity: measuring and testing
  • 330 - Amplifiers