3904964

Information

• Patent Grant
• 3904964

• References
• Source

• Patent Number

  3,904,964

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1975
  49 years ago

• CPC

  • G01R27/30 - with provision for recording characteristics

• US Classifications

  • 324 - Electricity: measuring and testing
  • 455 - Telecommunications