3443212

Information

• Patent Grant
• 3443212

• References
• Source

• Patent Number

  3,443,212

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1969
  55 years ago

• CPC

  • G01N27/9066 - by measuring the propagation time, or delaying the signals

• US Classifications

  • 324 - Electricity: measuring and testing