2808580

Information

• Patent Grant
• 2808580

• References
• Source

• Patent Number

  2,808,580

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1957
  67 years ago

• CPC

  • G01F1/24 - with magnetic or electric coupling to the indicating device
  • Y10S73/11 - Photoelectric cell

• US Classifications

  • 340 - Communications: electrical
  • 073 - Measuring and testing
  • 250 - Radiant energy