3808887

Information

• Patent Grant
• 3808887

• References
• Source

• Patent Number

  3,808,887

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • G01F23/2922 - with light-conducting sensing elements
  • Y10S116/05 - using light guides

• US Classifications

  • 073 - Measuring and testing
  • 116 - Signals and indicators
  • 340 - Communications: electrical