2971134

Information

• Patent Grant
• 2971134

• References
• Source

• Patent Number

  2,971,134

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1961
  64 years ago

• CPC

  • G05B11/017 - using photo-electric means

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems