3523456

Information

• Patent Grant
• 3523456

• References
• Source

• Patent Number

  3,523,456

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1970
  54 years ago

• CPC

  • G01F23/292 - Light
  • G01F23/606 - using opto-electrically actuated indicating means

• US Classifications

  • 073 - Measuring and testing
  • 340 - Communications: electrical