2565266

Information

• Patent Grant
• 2565266

• References
• Source

• Patent Number

  2,565,266

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1951
  73 years ago

• CPC

  • H04L17/14 - with optical sensing means

• US Classifications

  • 178 - Telegraphy
  • 235 - Registers
  • 250 - Radiant energy
  • 315 - Electric lamp and discharge devices: systems