2721994

Information

• Patent Grant
• 2721994

• References
• Source

• Patent Number

  2,721,994

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1955
  69 years ago

• CPC

  • B61L1/161 - characterised by the counting methods
  • B61L1/165 - Electrical
  • B61L1/167 - Circuit details
  • G01S11/06 - using intensity measurements

• US Classifications

  • 340 - Communications: electrical
  • 324 - Electricity: measuring and testing
  • 342 - Communications: directive radio wave systems and devices
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems