2977534

Information

• Patent Grant
• 2977534

• References
• Source

• Patent Number

  2,977,534

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1961
  63 years ago

• CPC

  • G06G7/02 - Details not covered by G06G7/04 - G06G7/10

• US Classifications

  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical